# List of Eastern Orthodox saints

This is a partial list of canonised saints in the Eastern Orthodox Church.
In Orthodoxy, a saint is defined as anyone who is in heaven, whether recognised here on earth, or not. By this definition, Adam and Eve, Moses, the various prophets, and archangels are all given the title of Saint. Sainthood in the Orthodox Church does not necessarily reflect a moral model, but communion with God; there are many examples of people who lived in great sin and became saints by humility and repentance: Saints Mary of Egypt, Moses the Ethiopian, and Dismas, the repentant thief who was crucified with Jesus Christ. Therefore, a more complete Orthodox definition of what a saint is, has to do with the way that saints, through their humility and their love of mankind, saved inside them the entire Church, and loved all people.
Orthodox belief states that God reveals saints through answered prayers and other miracles. Saints are usually recognised by their local community, often by people who directly knew them. As their popularity grows they are often then recognised by the entire Church through the Holy Spirit. The word canonisation means that a Christian has been found worthy to have his name placed in the canon (official list) of saints of the Church. The formal process of recognition involves deliberation by a synod of bishops. Evidence of a virtuous life and prior local veneration of the saint are required for canonization.
Because the Church shows no true distinction between the living and the dead, as the saints are considered to be alive in heaven, saints are referred to as if they are still alive, and are venerated, not worshipped. They are believed to be able to intercede for the living for salvation or other requests and help mankind either through direct communion with God or by personal intervention.

## List

Some saints listed may also be a part of a larger group of saints also listed (particularly martyrs, such as Saint Laura of Córdoba and the Martyrs of Córdoba).
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| Saint | Died (Year) | Feast Day (OS) | Notes |
| 3 Magi | 1–100 | 25 December | Kings from the East who brought the gifts of gold, frankincense, and myrrh to the Christ Child in Matthew 1, a.k.a. the 3 Wise Men, whose names were Melchior, Caspar, and Balthasar |
| 3 Martyrs of Vilnius | 1347 | 14 April | Martyrs; whose names were Anthony, John, and Eustathius |
| 7 Brothers of Lazia | 304 | 24 June | Martyrs |
| 7 Maccabean Martyrs | 167–160 BC | 1 August | Martyrs, sons of St. Solomonia |
| 7 Robbers of Corfu | 0063 c. 63 | 28 April | Martyrs |
| 7 Sleepers of Ephesus | 447 | 4 August / 22 October | Holy Youths |
| 13 Martyrs of Kantara | 1231 | 19 May | Venerable Martyrs |
| 40 Martyrs of Sebaste | 320 | 9 March | Martyrs |
| 42 Martyrs of Amorium | 845 | 6 March | Martyrs |
| 47 First Martyrs of Rome | 0067 c. 67 | 14 March | Protomartyrs of the Patriarchate of Rome |
| 48 Martyrs of Córdoba | 850–859 | Various | Martyrs |
| 60 Martyrs of Jerusalem | 0639 c. 639 | unknown | Martyrs, Military Saints |
| 79 Venerable Martyrs of Sinai and Raithu | 301–400 | 14 January | Venerable Martyrs; 40 were killed at Mount Sinai and 39 at Raithu |
| 222 Martyrs of China | 1900 | 11 June | Martyrs |
| 300 Aragvian Martyrs | 1795 | 11 September | Martyrs |
| 300 Martyrs of Lazeti | 1600–1620 | 29 April | Martyrs |
| 377 Martyrs of Adrianople | 815 | 22 January | Martyrs |
| 10,000 Martyrs of Antioch | 249–251 | 1 June | Martyrs |
| 14,000 Holy Innocents | c. 2 BC | 29 December | First Martyrs, Child Martyrs |
| 20,000 Martyrs of Nicomedia | 301–305 | 28 December | Martyrs |
| 100,000 Martyrs of Tbilisi | 1226 | 31 October | Martyrs |
| 700,000 New Martyrs of Jasenovac | 1941–1945 | 31 August | New Martyrs |
| Aaron | c. 1569 BC | Sunday of the Holy Forefathers | Prophet, High Priest, elder brother of Prophet Moses |
| Aaron of Aleth | 0552 c. 552 | 22 June | Bishop of Aleth, Abbot, Venerable |
| Abbán of Corbmaic | 501–600 | 27 October | Abbot, Venerable, nephew of St. Kevin |
| Abbán of Leinster | 401–500 | 16 March | Abbot, Venerable, founder of Kill-Abban Monastery, nephew of St. Ibar |
| Abbo of Auxerre | 860 | 3 December | Bishop of Auxerre, Abbot of the Abbey of Saint-Germain d'Auxerre, Venerable |
| Abbo of Fleury | 1004 | 13 November | Abbot of Fleury Abbey, Venerable Martyr |
| Abel | c. 64 AM – c. 130 AM | Sunday of the Holy Forefathers | Righteous; who was the first man to die, as he was murdered by his older brother Cain |
| Abgar V of Edessa | 0050 c. 50 | 11 May / 28 October | King of Osroene, first Christian monarch; who according to legend received a letter handwritten by Jesus and the Mandylion |
| Abibon | 33–50 | 2 August | Righteous, son of St. Gamaliel the Rabban; a.k.a. Abibas |
| Abibos of Nekresi | 501–600 | 29 November | Bishop of Nekresi, Venerable Hieromartyr, one of the 13 Assyrian Apostles |
| Abibus of Edessa | 322 | 15 November | Deacon, Hieromartyr |
| Abo of Tiflis | 0786 c. 786 | 8 January | New Martyr; a.k.a. Abo the Perfumer |
| Abraham | Patriarchal Age | 9 October | Patriarch, Righteous, previously known as Abram |
| Abraham of Bulgaria | 1229 | 1 April / 9 March | Martyr; a convert from Islam killed by his fellow compatriots |
| Abraham of Ephesus | 501–600 | 28 October | Bishop, Venerable; who founded many monasteries |
| Abraham of Galich | 1375 | 20 July | Hegumen, Venerable, disciple of St. Sergius of Radonezh |
| Abraham of Mirozha | 1158 | 24 September | Hegumen of Mirozh, Venerable |
| Abraham of Paleostrov | 1460 c. 1460 | 21 August | Venerable, disciple of St. Cornelius of Paleostrov |
| Abraham of Rostov | 1045–1074 | 29 October | Archimandrite, Venerable |
| Abraham of Smolensk | 1222 | 21 August | Hieromonk, Wonderworker, Venerable |
| Abraham the Laborious | 1101–1350 | 21 August | Venerable, the Laborious |
| Abrahamite Martyrs | 0835 c. 835 | 6 July | Venerable Martyrs |
| Acacius of Amida | 425 | 9 April (?) | Bishop of Amida, Venerable; who ransomed for the freedom of 7000 Persian prisoners |
| Acacius of Byzantium | 0303 c. 303 | 7 May | Martyr; a.k.a. Acacius the Centurion, Agathius, Achatius, and Agathonas |
| Acacius of Kavsokalyvia | 1730 | 12 April | Venerable, Athonite monk, Righteous; a.k.a. Akakios the Younger and Acacius the New |
| Acacius of Melitene the Elder | 250 | 31 March / 15 September | Bishop of Melitene, Venerable Hieromartyr; a.k.a. Agathangelos, Acathius or Achates |
| Acacius of Melitene the Younger | 0437 c. 437 – c. 500 | 27 April | Bishop of Melitene, Venerable; a.k.a. Acathius or Achates |
| Acacius of Sebaste | 0304 c. 304 | 27 November | Hieromartyr |
| Achaicus of Corinth | 33–100 | 15 June / 4 January | Apostle of the Seventy, Hieromartyr |
| Achillas of Alexandria | 313 | 7 November | Patriarch of Alexandria, Venerable |
| Achillius of Larissa | 330 | 15 May | Metropolitan of Larissa, Venerable; who condemned Arianism at the First Ecumenical Council; a.k.a. Achilles, Ailus, Achillas, or Achilius |
| Adam | 930 AM | Sunday of the Holy Forefathers / Forgiveness Sunday | Forefather, Righteous, the Proto-Created, the first man |
| Adelaide of Italy | 999 | 16 December | Holy Roman Empress, Righteous |
| Adeodatus I | 618 | 8 November | Patriarch of Rome, Venerable |
| Adrian of Nicomedia | 306 | 26 August | Martyr, husband of St. Natalia of Nicomedia; a.k.a. Hadrian |
| Ælfheah of Canterbury | 1012 | 19 April | Archbishop of Canterbury, Bishop of Winchester, Venerable, Abbot of Bath Abbey, Venerable Hieromartyr; a.k.a. Alphege the Martyr |
| Ælfric of Abingdon | 1005 | 16 November | Archbishop of Canterbury, Bishop of Wilton, Abbot of Abingdon Abbey, Venerable; a.k.a. Alfric |
| Æthelhard of Canterbury | 805 | 12 May | Archbishop of Canterbury, Venerable; a.k.a. Ethelhard |
| Æthelhelm of Canterbury | 923 | 8 January | Archbishop of Canterbury, Bishop of Wells, Abbot of Glastonbury Abbey, Venerable; a.k.a. Athelm |
| Æthelnoth of Canterbury | 1038 | 30 October | Archbishop of Canterbury, Venerable, the Good; a.k.a. Ethelnoth, Ednoth and Eadnodus |
| Afan of Bulith | 501–600 | 16 November | Bishop of Llanbadarn or Builth, Venerable Hieromartyr; founder of the church of Llanafan, Wales |
| Agabus | 33–100 | 8 April / 4 January | Apostle of the Seventy, Martyr |
| Agape, Chionia, and Irene | 304 | 16 April | Virgin Martyrs |
| Agapetus I | 536 | 17 April | Patriarch of Rome, Venerable |
| Agapetus of Pechersk | 1001–1100 | 1 June | Unmercenary Healer, Venerable, monk in the Kyiv Pechersk Lavra; a.k.a. Agapetus of the Caves |
| Agatha of Sicily | 0251 c. 251 | 5 February | Virgin Martyr |
| Agatho of Rome | 681 | 20 February | Patriarch of Rome, Venerable |
| Agathon of Scetis | 0435 c. 435 | 2 March / 8 January | Desert Father, Venerable |
| Aglaida of Rome | 0201 c. 201 – c. 350 | 19 December | Righteous, romantic partner of St. Boniface; a.k.a. Aglae |
| Agnes of Rome | 0305 c. 305 | 21 January | Virgin Martyr |
| Ahmet the Calligrapher | 1682 | 3 May / 24 December | New Martyr; a convert from Islam killed by his companions |
| Aidan of Ferns | 626 | 31 January | Bishop of Ferns, Abbot, Venerable; a.k.a. Máedóc, Madoc and Mogue |
| Aidan of Lindisfarne | 651 | 31 August | Apostle of Northumbria, Venerable |
| Alena of Belgium | 0640 c. 640 | 18 June | Virgin Martyr; a.k.a. Alène and Alina |
| Alexander Hotovitzky | 1937 | 4 December / 7 August | New Hieromartyr |
| Alexander Nevsky | 1263 | 23 November / 30 August | Grand Prince of Vladimir and Novgorod, Right-Believing |
| Alexander of Constantinople | 340 | 30 August | Archbishop of Constantinople, Venerable; whose fervent prayer led to the painful death of Arius |
| Alexander of Jerusalem | 251 | 16 May / 12 December | Church Father, Patriarch of Jerusalem, Venerable Hieromartyr |
| Alexander of Rome | 284–305 | 13 May | Martyr |
| Alexander of Svir | 1533 | 30 August | Hegumen of Alexander-Svirsky Monastery, Venerable; a.k.a. Alexander Svirsky |
| Alexander I of Alexandria | 326 / 328 | 29 May | Church Father, Patriarch of Alexandria; who fought against Arianism |
| Alexander I of Rome | 0116 c. 116 | 16 March | Patriarch of Rome, Venerable Hieromartyr |
| Alexander of Munich | 1943 | 13 July | Passion Bearer; the only Orthodox member of the White Rose resistance group; native name Alexander Schmorell |
| Alexander (Trapitsyn) [ru] | 1938 | 14 January | Archbishop of Pugachyov, New Venerable Hieromartyr |
| Alexandra the Passion Bearer | 1918 | 17 July | Passion Bearer, Empress of Russia as the spouse of St Nicholas II, one of the Romanov Martyrs |
| Alexei Nikolaevich | 1918 | 17 July | Passion Bearer, one of the Romanov Martyrs |
| Alexis of Wilkes-Barre | 1909 | 7 May | Hieroconfessor, Defender of Orthodoxy; who converted 20,000 Ruthenian Catholics to Orthodoxy; a.k.a. Alexis Toth |
| Alexis of Rome | 401–450 | 17 March | Man of God, Venerable; a.k.a. Alexius |
| Alypius of the Caves | 1114 c. 1114 | 17 August / Second Sunday of Great Lent | Venerable, Iconographer; a.k.a. Alipy |
| Alypius the Stylite | 640 | 26 November | Monastic founder, Stylite, Venerable, intercessor for the infertile, and a protector of children |
| Alphaeus | 33–100 | 26 May / 4 January | Apostle of the Seventy, father of the Apostles James and Matthew |
| Alphege the Bald | 951 | 12 March | Bishop of Winchester, Venerable, the Elder, the Bald |
| Ambrose Gudko | 1918 | 9 August | Bishop of Sarapul and Yelabuga, Venerable Hieromartyr |
| Ambrose of Milan | 397 | 7 December | Church Father, Bishop of Milan, Venerable; who opposed Arianism |
| Ambrose of Optina | 1891 | 10 October | Venerable, Hieroschemamonk, one of the 14 Optina Elders [ru] |
| Ambrosius of Georgia | 1927 | 16 March | Catholicos-Patriarch of All Georgia, Hieroconfessor |
| Ammon of Egypt | 356 | 4 October / 7 December | Desert Father, Venerable; a.k.a. Amun, Amoun, Ammonas and Ammonius the Hermit |
| Ammon of Nitria | 401–430 | 10 January | Desert Father, Venerable; a.k.a. Amtnonas, Ammonius and Ammonas of Egypt |
| Amos | c. 787 BC | 15 June | Prophet; who wrote the Book of Amos |
| Amphian | 0305 c. 305 | 2 April | Martyr, disciple of St. Pamphilus |
| Amphilochius of Iconium | 394 | 23 November | Church Father, Bishop of Iconium; who fought against Arianism and Macedonianism |
| Amphilochius of Patmos | 1970 | 16 April | Venerable Hieromonk, native name Amphilochios Makris |
| Amphilochius of Pochayiv | 1971 | 29 April | Venerable, Wonderworker |
| Ampliatus | 33–100 | 31 October / 4 January | Apostle of the Seventy, Bishop of Diospolis, Venerable Hieromartyr; a.k.a. Amplias |
| Anacletus | 0091 c. 91 | 26 April | Patriarch of Rome, Venerable Hieromartyr; a.k.a. Cletus |
| Ananias of Damascus | 33–100 | 1 October / 4 January | Apostle of the Seventy, Bishop of Damascus, Venerable Hieromartyr |
| Anastasia of Russia | 1918 | 17 July | Passion bearer; one of the Romanov Martyrs |
| Anastasius I of Rome | 401 | 19 December | Patriarch of Rome, Venerable, father of St. Innocent I |
| Anastasius II of Rome | 498 | 8 September / 19 November | Patriarch of Rome, Venerable |
| Anastasius of Sinai | 685 | 20 April / Bright Wednesday | Abbot, Venerable |
| Anathalon of Milan | 33–100 | 24 September | Bishop of Milan and Brescia, disciple of St. Barnabas, name also spelled Anatalius, Anatolius, Anatalone, Anatalo, and Anatolio |
| Anatolius of Constantinople | 458 | 3 July | Patriarch of Constantinople, Venerable; who condemned Eutyches and Dioscorus of Alexandria for Monophysitism |
| Andrew of Constantinople | 936 | 2 October | Fool for Christ, Blessed |
| Andrew of Crete | 712 / 726 | 4 July | Archbishop of Crete, homilist, and hymnographer |
| Andrew the Apostle | 62 | 30 November / 30 June | Apostle, Martyr, the First-Called, the All-Praised |
| Andrew the Commander | 300 | 19 August | Martyr, Military Saint; a.k.a. Andrew the Tribune and Andrew Stratelates |
| Andrew the Iconographer | 1427–1430 | 29 January / 4 July | Venerable, Iconographer, native name Andrei Rublev |
| Andrew the Martyr of Crete | 766 / 767 | 17 October | Venerable Martyr, iconodule |
| Andrew the Prince | 1174 | 4 July | Right-Believing, Passion bearer, the Prince, native name Andrey Yuryevich Bogolyubsky |
| Andronicus of Pannonia | 33–100 | 17 May / 30 July / 4 January | Apostle of the Seventy, Bishop of Pannonia, Hieromartyr |
| Anianus of Alexandria | 82 | 25 April | Patriarch of Alexandria, the first person to be converted by St. Mark the Evangelist |
| Anicetus of Rome | 166 | 17 April | Patriarch of Rome, Venerable Hieromartyr |
| Anna of Kashin | 1368 | 2 October / 21 July / 12 June | Right-Believing, Venerable, Princess of Kashin |
| Anna of Novgorod | 1050 | 10 February | Right-Believing, Princess of Novgorod, daughter of St. Olaf, native name Ingegerd Olofsdotter |
| Anna the Prophetess | 1–100 | 3 February | Prophetess, Righteous |
| Anne | 1–80 | 25 July / 9 September / 9 December | Mother of the Virgin Mary, Righteous |
| Anoub of Scetis | 440–460 | 6 June | Desert Father, Venerable, a.k.a. Anoub the Anchorite and Anoub the Signbearer |
| Ansgar | 865 | 3 February | Apostle of the North, Archbishop of Hamburg-Bremen; a.k.a. Oscar and Anskar/Anschar |
| Antherus | 236 | 5 August | Patriarch of Rome, Venerable Hieromartyr |
| Anthimus of Nicomedia | 303 / 311–312 | 3 September | Bishop of Nicomedia, Venerable Hieromartyr |
| Anthony of Kiev | 1073 | 2 September | Venerable, founder of the monastic tradition in Kievan Rus'; a.k.a. Anthony of the Caves |
| Anthony of Rome | 1147 | 3 August / 17 January / First Friday after 29 June | Hegumen of Novgorod, Venerable; a.k.a. Anthony the Roman |
| Anthony of Siya | 1556 | 7 December | Hegumen of Siya Monastery, Venerable |
| Anthony the Great | 356 | 17 January | Father of Monasticism, Church Father, Venerable; a.k.a. Anthony of Egypt, Anthony the Abbot, Anthony of the Desert, Anthony the Anchorite, Anthony the Hermit, and Anthony of Thebes |
| Antipas of Pergamum | 68 / 92 | 11 April | Bishop of Pergamum, Hieromartyr, disciple of St. John the Apostle |
| Apelles of Heraklion | 33–150 | 22 April / 10 September / 31 October / 4 January | Apostle of the Seventy, Bishop of Heraclea |
| Aphrahat the Persian | 0345 c. 345 | 29 January | Church Father, Abbot, Venerable, the Persian |
| Apollinaris of Hierapolis | 167–201 | 8 January | Church Father, Bishop of Hierapolis; a.k.a. Apollinaris Claudius |
| Apollinaris of Ravenna | 33–100 | 23 July | Bishop of Ravenna, Hieromartyr |
| Apollinaris of Valence | 0520 c. 520 | 5 October | Bishop of Valence, brother of St. Avitus of Vienne |
| Apollinaria of Egypt | 470 | 5 January | Venerable |
| Apollos | 33–150 | 30 March / 8 December / 10 September / 4 January | Apostle of the Seventy, Bishop of Caesarea |
| Aquila | 33–100 | 14 July / 4 January | Apostle of the Seventy, Bishop of Asia, Hieromartyr, husband of St. Priscilla |
| Archippus | 33–150 | 19 February / 22 November / 4 January | Apostle of the Seventy, Bishop of Laodicea, Hieromartyr |
| Aredius of Gap | 604 | 1 May | Bishop of Gap, Venerable |
| Aredius of Limoges | 591 | 25 August | Abbot, Venerable; a.k.a. Yrieix and Arède |
| Aristarchus of Thessalonica | 33–150 | 15 April / 27 September / 4 January | Apostle of the Seventy, Bishop of Apamea |
| Aristides of Athens | 120 | 13 September | Church Father, Martyr, the Athenian |
| Aristobulus of Britannia | 33–150 | 15 March / 16 March / 31 October / 4 January | Apostle of the Seventy, Bishop of Britain, possibly a Hieromartyr, brother of St. Barnabas |
| Arsenios the Cappadocian | 1924 | 28 October | Archimandrite, Venerable, spiritual father of St. Paisios |
| Arsenius the Great | 449 / 450 | 8 May | Church Father, Desert Father, Venerable, Deacon, the Great; a.k.a. Arsenius of Scetis and Turah, Arsenius the Roman and Arsenius the Deacon |
| Artemas of Lystra | 33–150 | 30 October / 4 January | Apostle of the Seventy, Bishop of Lystra |
| Asclepiades of Antioch | 217 | 18 October | Patriarch of Antioch, Venerable Hieromartyr, name also spelled Aslipiades, Askelpiades and Asclepiades |
| Asenath | c. 1750 BC – c. 1550 BC | Sunday of the Holy Forefathers | Fair, wife of Patriarch Joseph |
| Asyncritus of Hyrcania | 50–100 | 8 April / 4 January | Apostle of the Seventy, Bishop of Hyrcania, Hieromartyr; a.k.a. Asynkritos |
| Athanasius of Alexandria | 373 | 2 May / 18 January | Church Father, Patriarch of Alexandria, the Great |
| Athanasius the Athonite | 1003 c. 1003 | 5 July | Church Father, Venerable; a.k.a. Athanasius of Mount Athos |
| Athenagoras of Athens | 0190 c. 190 | 24 July | Church Father, Apologist |
| Atticus of Constantinople | 425 | 8 January | Church Father, Archbishop of Constantinople, Venerable |
| Augustine of Canterbury | 0604 c. 604 | 27 May | Apostle to the English, first Archbishop of Canterbury, Venerable |
| Augustine of Hippo | 430 | 15 June | Church Father, Bishop of Hippo, Venerable, Blessed |
| Aurelius and Natalia | 852 | 27 July | Martyrs; whose companions were George, Felix, and Liliosa; part of the 48 Martyrs of Córdoba |
| Aurelius of Carthage | 429 | 20 July | Church Father, Bishop of Carthage, Venerable |
| Avilius of Alexandria | 95 | 22 February | Patriarch of Alexandria, Venerable |
| Avitus I of Clermont | 0600 c. 600 | 21 August | Bishop of Clermont, Venerable |
| Avitus II of Clermont | 689 | 21 February | Bishop of Clermont, Venerable |
| Avitus of Vienne | 0520 c. 520 | 5 February | Church Father, Bishop of Vienne, Venerable, brother of St. Apollinaris of Valence |
| Azariah | 600–501 BC | Sunday of the Holy Forefathers | Holy Youth, Righteous, given the pagan name Abednego |
| Barachiel | N/A | 8 November | Archangel |
| Barbara of Heliopolis | 0306 c. 306 | 4 December | Great Martyr, Virgin Martyr |
| Barbara Yakovleva | 1918 | 18 July | New Venerable Martyr, native name Varvara |
| Barbatus of Benevento | 682 | 19 February | Bishop of Benevento, Venerable |
| Barlaam of India | 350–450 | 30 May / 19 November | Venerable Hermit; a.k.a. Bilawhar |
| Barlaam of Kiev | 1065 | 28 September / 19 November | Hegumen, Venerable |
| Barnabas | 0062 c. 62 | 11 June / 4 January | Apostle of the Seventy, Bishop of Milan, Hieromartyr, companion of St. Paul, brother of St. Aristobulus |
| Barsanuphius the Great | 0543 c. 543 | 6 February | Desert Father, Venerable; author (together with St. John the Prophet) of over 800 letters giving spiritual direction that influenced Byzantine monasticism |
| Bartholomew the Apostle | 0070 c. 70 | 11 June / 30 June | Apostle, Martyr |
| Baruch | c. 600 BC – c. 501 BC | 28 September | Prophet; who wrote the Book of Baruch; a.k.a. Baruch ben Neriah |
| Basil of Ancyra | 362 | 22 March | Hieromartyr; who fought against Arianism |
| Basil of Ostrog | 1671 | 29 April | Bishop of Zahumlje, Venerable |
| Basil of Poiana Mărului [ro; fr] | 1767 | 25 April | Hegumen, Venerable, Hesychast, spiritual father of St. Paisius Velichkovsky |
| Basil the Blessed | 1552 / 1557 | 2 August | Fool for Christ, Blessed |
| Basil the Great | 379 | 1 January | Great Hierarch, Church Father, Cappadocian Father, Desert Father, Bishop of Caesarea, the Great; an influential theologian who supported the Nicene Creed and fought against Arianism and Apollinarianism |
| Basil the Layman of Ancyra | 331–362 | 1 January | Martyr |
| Bede of Jarrow | 735 | 27 May | Church Father, Venerable, father of English history |
| Benedict of Aniane | 821 | 11 February | Venerable, monastic reformer |
| Benedict of Nursia | 543 | 14 March | Venerable, founder of the Benedictine Order and Western monasticism |
| Benedict II of Rome | 685 | 7 May | Patriarch of Rome, Venerable |
| Benjamin of Nitria | 0401 c. 401 – c. 500 | 29 December | Desert Father, Venerable |
| Benjamin of Petrograd | 1922 | 31 July | Metropolitan of Petrograd and Gdov, New Venerable Hieromartyr |
| Benjamin the Deacon | 0424 c. 424 | 13 October | Deacon, Hieromartyr; a.k.a. Benjamin the Deacon of Persia |
| Bertharius of Monte Cassino | 0884 c. 884 | 22 October | Abbot of Monte Cassino, Venerable Martyr |
| Bessarion the Great | 401–500 | 6 June | Desert Father, Venerable, Wonderworker; a.k.a. Bessarion of Egypt or Bessarion of Scetis |
| Birinus | 649 / 650 | 3 December | Apostle to the West Saxons, Bishop of Genoa, Venerable |
| Blaise | 0316 c. 316 | 11 February | Bishop of Sebaste, Hieromartyr |
| Boethius | 0521 c. 521 | 7 December | Church Father; a.k.a. Buithe/Buite |
| Boniface I of Rome | 422 | 4 September | Patriarch of Rome, Venerable |
| Boniface IV of Rome | 615 | 25 May | Patriarch of Rome, Venerable |
| Boniface of Mainz | 754 / 755 | 5 June | Apostle to the Germans, Enlightener, Bishop of Mainz, Hieromartyr |
| Boniface of Tarsus | 0307 c. 307 | 19 December | Martyr, romantic partner and slave of St. Aglaida |
| Bonitus of Clermont | 0710 c. 710 | 15 January | Bishop of Clermont, Venerable |
| Bonitus of Monte Cassino | 0582 c. 582 | 7 July | Abbot of Monte Cassino, Venerable |
| Boris I of Bulgaria | 907 | 2 May | King of Bulgaria, Equal-to-the-Apostles, the Baptiser |
| Boris and Gleb | 1015 c. 1015 – c. 1019 | 24 July | Passion Bearers |
| Branko Dobrosavljević | 1941 | 24 April | New Hieromartyr |
| Braulio of Zaragoza | 651 | 26 March | Church Father, Bishop of Zaragoza, Hieromonk |
| Brendan of Birr | 0573 c. 573 | 29 November | One of the Twelve Apostles of Ireland, Venerable |
| Brendan the Navigator | 575 / 0583 c. 583 | 16 May | One of the Twelve Apostles of Ireland, Venerable, the Navigator |
| Bregowine of Canterbury | 764 | 24 August | Archbishop of Canterbury, name also spelled Bregwin/Bregwine |
| Brigid of Kildare | 525 | 1 February | Abbess, Venerable, first Irish nun; a.k.a. Brigid of Ireland |
| Bruno of Querfurt | 1009 | 19 June / 15 October | Bishop of Mersburg, Hieromartyr, Second Apostle to the Prussians |
| Caesaria the Younger | 0530 c. 530 | 12 January | Abbess of Abbey of St Caesarius, Venerable, sister of St. Caesarius of Arles |
| Caesarius of Arles | 543 | 27 August | Church Father, Bishop of Arles, brother of St. Caesaria |
| Caesarius of Nazianzus | 368 / 369 | 9 March | Doctor, brother of St. Gregory of Nazianzus |
| Caesarius of Terracina | 0201 c. 201 – c. 300 | 1 November | Deacon, Hieromartyr |
| Caius of Milan | 33–100 | 27 September | Bishop of Milan, Venerable; a.k.a. Gaius |
| Caius of Rome | 296 | 22 April | Patriarch of Rome, Venerable Hieromartyr; a.k.a. Gaius |
| Caleb | c. 1500 BC | Sunday of the Holy Forefathers | Righteous |
| Callinicus I of Constantinople | 705 | 23 August | Ecumenical Patriarch of Constantinople, Venerable |
| Callistratus of Carthage | 303–311 | 27 September | Martyr, the Soldier, name also spelled Kallistratos |
| Callistus I of Constantinople | 1363 | 20 June | Ecumenical Patriarch of Constantinople, Venerable |
| Callistus I of Rome | 222 | 14 October | Patriarch of Rome, Venerable Hieromartyr; a.k.a. Callixtus I |
| Carpus of Beroea | 33–150 | 26 May / 4 January | Apostle of the Seventy, Bishop of Beroea |
| Castinus of Byzantium | 237 | 25 January | Bishop of Byzantium, Venerable |
| Catherine of Alexandria | 0305 c. 305 | 24 November / 25 November | Great Martyr, Virgin Martyr; a.k.a. Katherine |
| Celestine I of Rome | 432 | 8 April | Patriarch of Rome, Venerable |
| Cephas of Iconium | 33–150 | 30 March / 8 December / 4 January | Apostle of the Seventy, Bishop of Iconium |
| Chad of Mercia | 673 | 2 March | Apostle to the Mercians, Bishop of Mercia and York, Abbot, Venerable, Wonderworker |
| Charitina of Amisus | 304 | 5 October | Virgin Martyr |
| Charitina of Lithuania | 1281 | 5 October | Hegumenia, Venerable, Princess of Lithuania |
| Chariton the Confessor | 350 | 28 September | Desert Father, Abbot, Venerable, Confessor |
| Christopher of Lycia | 250 | 9 May | Martyr |
| Christopher of Trebizond | 668 | 18 August | Abbot of Sumela Monastery, Venerable |
| Clement of Ohrid | 960 | 27 July / 22 November / 25 November | One of the 7 Apostles of Bulgaria, Equal-to-the-Apostles, Bishop of Greater Macedonia, disciple of Saints Cyril and Methodius |
| Clement of Rome | 0101 c. 101 | 25 November / 22 April / 10 September | Patriarch of Rome, Venerable, Apostolic Father, Hieromartyr |
| Clement of Sardice | 33–100 | 22 April / 10 September / 4 January | Apostle of the Seventy, Bishop of Sardis |
| Cleopas of Emmaus | 33–150 | 30 October / 4 January | Apostle of the Seventy, brother of St. Joseph, name also spelled as Cleophas |
| Cleopas of Sihăstria | 1998 | 2 December | Hegumen, Venerable, native name Cleopa Ilie |
| Cloud of Paris | 0560 c. 560 | 7 September | Abbot, Venerable, the Ascetic; a.k.a. Clodoald |
| Columba of Iona | 597 | 9 June | Apostle of the Picts, Church Father, Abbot, Venerable; a.k.a. Colmcille |
| Columbanus | 615 | 23 November | Venerable Missionary |
| Constantine Brâncoveanu | 1714 | 16 August | Prince of Wallachia, Martyr |
| Constantine of Murom | 1129 | 21 May | Right-Believing, Venerable, Wonderworker of Murom; a.k.a. Constantine the Blessed |
| Constantine the Great | 337 | 21 May | Equal-to-the-Apostles, Roman Emperor, the Great; who first legalised Christianity in the Roman Empire |
| Constantine the Younger | 685 | 3 September | Right-Believing, Emperor; a.k.a. Constantine IV |
| Cornelius of Rome | 253 | 16 September | Patriarch of Rome, Venerable Hieromartyr |
| Cosmas and Damian of Cilicia | 303–313 | 17 October | Holy Unmercenaries, Martyrs; brothers who were martyred with their brothers Leontius, Anthimus, and Eutropius; a.k.a. Cosmas and Damian of Arabia |
| Cosmas and Damian of Mesopotamia | 0287 c. 287 | 1 November | Holy Unmercenaries, Wonderworkers, Martyrs, twin sons of St. Theodota; a.k.a. Cosmas and Damian of Asia Minor |
| Cosmas and Damian of Rome | 283–285 | 1 July | Holy Unmercenaries, Wonderworkers, Martyrs, brothers |
| Cosmas of Aetolia | 1779 | 24 August | Equal-to-the-Apostles, Hieromonk, New Venerable Hieromartyr, the Aetolian; a.k.a. Kosmas |
| Cosmas I of Constantinople | 1081 | 2 January | Ecumenical Patriarch of Constantinople, Wonderworker, Venerable, a.k.a. Cosmas I the Jerusalemite |
| Cosmas of Maiuma | 701–800 | 12 October / 14 October | Bishop of Maiuma, Venerable, the Hymnographer |
| Credan | 0780 c. 780 | 19 August | Abbot of Evesham Abbey, Venerable |
| Crescentian of Sardinia | 0130 c. 130 | 31 May | Martyr |
| Crescentian, Victor, Rosula and Generalis | 0258 c. 258 | 14 September | Martyrs |
| Crescentiana of Rome | 401–500 | 5 May | Martyr |
| Crescentinus | 0287 c. 287 / 303 | 1 June | Martyr, Military Saint |
| Crescentius of Florence | 0396 c. 396 | 19 April | Subdeacon, disiciple of St. Zenobius and St. Ambrose |
| Crescentius of Rome | 300 | 14 September | Child Martyr, son of St. Euthymius of Perugia |
| Crispin and Crispinian | 0285 c. 285 | 25 October | Martyrs; the patron saints of shoemakers |
| Crispin of Pavia | 0466 c. 466 | 7 January | Bishop of Pavia, Venerable; who signed the acts of the Council of Milan |
| Crispina | 304 | 5 December | Martyr |
| Crispus, Crispinianus, and Benedicta | 362 | 27 June | Martyrs |
| Cristiolus | 501–600 | 3 November | Founder of various churches in Wales; son of St. Hywel and brother of St. Sulien |
| Crescens of Galatia | 98–117 | 30 July / 4 January | Apostle of the Seventy, Bishop of Galatia, Hieromartyr; a.k.a. Criscus |
| Crispus of Chalcedon | 33–120 | 4 October / 4 January | Apostle of the Seventy, Bishop of Chalcedon, Hieromartyr |
| Cuthbert of Canterbury | 761 | 26 October | Archbishop of Canterbury, Bishop of Hereford, Venerable |
| Cuthbert of Lindisfarne | 687 | 20 March | Bishop of Lindisfarne, Venerable |
| Cyprian of Carthage | 258 | 31 August | Church Father, Bishop of Carthage, Hieromartyr |
| Cyprian of Kiev | 1406 | 27 May / 16 September | Metropolitan of Kiev and all Rus', Venerable |
| Cyriacus | 304 | 7 June | Deacon, Hieromartyr; who was martyred 23 others, including Largus, Smaragdus, Crescentianus, Memmia and Juliana; a.k.a. Cyriac |
| Cyriacus the Anchorite | 557 | 29 September | Venerable hermit and anchorite, name also spelled Kyriakos |
| Cyril the Philosopher | 869 | 11 May | Equal-to-the-Apostles, Teacher and Enlightener of the Slavs, Hieroconfessor, brother of St. Methodius |
| Cyril Lucaris | 1638 | 27 June | Ecumenical Patriarch of Constantinople, Venerable |
| Cyril of Alexandria | 444 | 9 June | Patriarch of Alexandria |
| Cyril of Beloozero | 1427 | 9 June | Hegumen, Venerable, disciple of St. Sergius of Radonezh |
| Cyril of Jerusalem | 386 | 18 March | Patriarch of Jerusalem, Hieroconfessor |
| Cyril of Turov | 1182 | 28 April | Bishop of Turov; a.k.a. Kirill of Turov |
| Damaris of Athens | 52–150 | 2 October / 3 October | First female Athenian convert to Christianity, disciple of St. Paul and St. Dionysius the Areopagite |
| Damasus I | 384 | 11 December | Patriarch of Rome, Venerable |
| Damian of Grahovo | 1941 | 31 May | New Hieromartyr, native name Damjan Štrbac |
| Prophet Daniel | c. 539 BC | Sunday of the Holy Forefathers | Prophet; who wrote the Book of Daniel; who was given the pagan name Belteshazzar |
| Daniel II of Serbia | 1337 | 20 December | Archbishop of Serbia |
| Daniel of Katounakia | 1929 | 7 September | Venerable, Athonite monk; a.k.a. Daniel Katounakiotis of Smyrna |
| Daniel of Moscow | 1303 | 4 March | Right-Believing, Prince of Moscow |
| Daniel of Padua | 168 | 3 January | Bishop of Padua, Venerable Hieromartyr |
| Daniel the Hesychast | 1488 | 18 December | Venerable, Wonderworker, Hesychast, spiritual father of St. Stephen the Great |
| David | c. 1000 BC | Sunday of the Holy Forefathers | Prophet, King of Israel; who wrote 73 of the Psalms |
| David of Gareji | 501–700 | 7 May | Wonderworker, Venerable, one of the thirteen Assyrian Apostles |
| David IV of Georgia | 1125 | 26 January | Right-Believing, Blessed, King of Georgia |
| David of Serbia | 1286 | 24 September | Venerable |
| David of Thessalonica | 540 | 26 June | Venerable, the Tree-Dweller |
| David of Wales | 0600 c. 600 | 1 March | Bishop of Mynyw (St Davids); a.k.a. Dewi |
| Declán of Ardmore | 450–500 | 24 July | Bishop of Ardmore, disciple of St. Colman; who converted the Déisi; name also spelled Déclán |
| Demetrius of the Don | 1389 | 19 May | Right-Believing, Grand Prince of Moscow; widely known as Dmitry Donskoy |
| Demetrius of Sirmium | 304 / 306 | 9 April | Martyr |
| Demetrius of Rostov | 1709 | 28 October | Metropolitan of Rostov, Venerable |
| Demetrius of Thessaloniki | 306 | 26 October | Great Martyr, the Myrrh-Streaming |
| Demetrius Stăniloae | 1993 | 4 October | Hieroconfessor, native name Dumitru Stăniloae |
| Denis of Paris | 250 | 9 October | Bishop of Paris, Hieromartyr |
| Deusdedit of Canterbury | 664 | 14 January | Archbishop of Canterbury |
| Diomedes of Tarsus | 284–305 | 16 August | Unmercenary Healer, Martyr |
| Dionysius the Areopagite | 64–100 | 3 October | Bishop of Athens, Hieromartyr, the Areopagite |
| Dionysius of Corinth | 0180 c. 180 | 29 November | Bishop of Corinth, Hieromartyr |
| Dionysius Exiguus | 0544 c. 544 | 1 September | Venerable, writer and canonist who invented AD dating |
| Dionysius the Great | 264 | 5 October | Patriarch of Alexandria, the Great |
| Dionysius of Rome | 268 | 26 December | Patriarch of Rome, Venerable Hieromartyr |
| Dismas | 0029 c. 29 | Good Friday | The Penitent Thief |
| Dorotheus of Gaza | 0565 c. 565 | 18 June | Hegumen, Venerable |
| Dunstan of Canterbury | 988 | 19 May | Archbishop of Canterbury, Bishop of London, Bishop of Worchester, Abbot of Glastonbury Abbey, Venerable |
| Dymphna | 601–700 | 15 May | Virgin Martyr, Lily of Éire |
| Eadsige of Canterbury | 1050 | 28 October | Archbishop of Canterbury, Venerable, Benedictine monk; a.k.a. Edsige, Eadsimus and Eadsin |
| Edith of Wilton | 984 | 16 September | Venerable, daughter of St. Wilfrida |
| Edmund the Martyr | 869 | 20 November | King of East Anglia, Martyr |
| Edward the Martyr | 979 | 18 March | King of England, Martyr |
| Edwin of Northumbria | 633 | 12 October | King of Deira and Bernicia, Martyr |
| Egbert of Northumbria | 729 | 24 April | Venerable |
| Ekvtime Takaishvili | 1953 | 3 January | Man of God |
| Eleazar the Martyr | 178–161 BC | 1 August | Martyr, teacher of the 7 Maccabean Martyrs |
| Eleazar the High Priest | c. 1250 BC – c. 1100 BC | 2 September | High Priest, son of Prophet Aaron |
| Elias the Hermit | 301–400 | 8 January | Desert Father, Venerable, the Hermit; a.k.a. Elias of Egypt |
| Elesbaan | 553–555 | 24 October | Blessed, King of Ethiopia; a.k.a. Kaleb of Axum |
| Eleutherius of Illyria | 120 | 15 December | Bishop of Illyria (Albania), Hieromartyr |
| Eleutherius of Nicomedia | 303 | 2 October | Martyr |
| Eleutherius of Rome | 189 | 26 May | Patriarch of Rome, Venerable Hieromartyr |
| Eleutherius of Tournai | 0532 c. 532 | 20 February | Bishop of Tournai; who fought against Arianism |
| Eligius of Noyon | 659 / 660 | 1 December | Bishop of Noyon, Hieroconfessor; who founded the monastery of Solignac; a.k.a. Eloi/Eloy |
| Elijah | c. 900 BC | 20 July | Prophet; a.k.a. Elias |
| Elisha | c. 900 BC | 14 June | Prophet |
| Elizabeth | 5–50 | 5 September | Righteous, mother of St. John the Baptist |
| Elizabeth the New Martyr | 1918 | 5 July | Princess of Hesse, Venerable New Martyr |
| Emmelia of Caesarea | 375 | 30 May / 1 January | Mother of Saints Basil of Caesarea, Macrina the Younger, Peter of Sebaste, Gregory of Nyssa, and Naucratius; a.k.a. Emilia and Emily |
| Emerentiana | 0305 c. 305 | 23 January | Martyr |
| Enoch | 1487 AM | 30 July / Sunday of the Holy Forefathers | Patriarch, Prophet |
| Enos | c. 3769 BC | Sunday of the Holy Forefathers | Patriarch, Righteous; a.k.a. Enosh |
| Epaphras of Colossae | 33–100 | 22 November / 4 January | Apostle of the Seventy, Martyr |
| Epaphroditus | 33–150 | 30 March / 8 December / 4 January | Apostle of the Seventy, Bishop of Adrianium |
| Epenetus of Carthage | 64 | 30 July / 4 January | Apostle of the Seventy, Bishop of Carthage, Hieromartyr |
| Ephraim of Antioch | 545 | 8 June | Patriarch of Antioch, Venerable |
| Ephraim of Katounakia | 1998 | 27 February | Venerable, Athonite elder |
| Ephraim of Nea Makri | 1426 | 5 May / 3 January | New Hieromartyr, the Newly-Revealed |
| Ephraim of Pereyaslavl | 1098 | 28 January | Metropolitan of Kiev and All Rus', Bishop of Pereiaslav, Venerable; a.k.a. Ephraim of the Caves |
| Ephrem the Syrian | 373 | 28 January | Desert Father, Venerable, Deacon, Hieroconfessor, Hymnographer; a.k.a. Ephraim of Syria and Ephraim of Edessa |
| Epiphanius of Pavia | 497 | 21 January | Bishop of Pavia, Venerable |
| Epiphanius of Salamis | 403 | 12 May | Church Father, Desert Father, Bishop of Cyprus, Venerable |
| Epiphanius the Wise | 1420 c. 1420 | 23 May | Venerable, the Wise, disciple of St. Sergius of Radonezh |
| Erastus of Paneas | 33–150 | 10 November / 4 January | Apostle of the Seventy, Deacon |
| Esther | c. 500 BC – c. 301 BC | Sunday of the Holy Forefathers | Righteous, Queen of Persia |
| Ethelbert of Kent | 616 | 25 February | King of Kent; a.k.a. Æthelberht, Æthelbert, Aethelberht, and Aethelbert |
| Etheldreda of Ely | 679 | 23 June | Abbess, Venerable, East Anglian princess; a.k.a. Audrey |
| Eucherius of Lyons | 449 | 16 November | Church Father, Archbishop of Lyons, Venerable |
| Eucherius of Orléans | 743 | 20 February | Bishop of Orléans, Venerable |
| Eudokia of Heliopolis | 107 | 1 March | Venerable Martyr |
| Eudokia of Persia | 201–300 | 4 August | Martyr; a.k.a. Eudokia the Martyr |
| Eugene I of Rome | 657 | 2 June | Patriarch of Rome, Venerable |
| Eugippius | 0535 c. 535 | 15 January | Church Father, Abbot, Venerable, disciple of St. Severinus, name also written as Eugyppius |
| Eulalia of Barcelona | 0304 c. 304 | 12 February | Virgin Martyr |
| Eulalia of Mérida | 0304 c. 304 | 10 December | Virgin Martyr |
| Eulogius of Alexandria | 607 / 608 | 13 February | Patriarch of Alexandria, Venerable Hieroconfessor |
| Euphrosyne of Alexandria | 470 | 25 September / 15 February | Venerable |
| Euphrosyne of Moscow | 1407 | 7 July / 17 May | Venerable, Grand Princess of Moscow, secular name Eudoxia of Moscow |
| Euphrosyne of Polotsk | 1173 | 23 May | Hegumenia, Venerable |
| Euphrosynus of Palestine [ru; sr] | 801–900 | 11 September | Venerable; a.k.a. Euphrosynus the Cook |
| Euphrosynus of Pskov | 1481 | 15 May | Hegumen of the Pskov-Caves Monastery, Venerable |
| Euprepius of Verona | 33–100 | 21 August | Bishop of Verona, Venerable |
| Eusebius of Milan | 465 | 12 August | Bishop of Milan, Venerable; who opposed Eutychianism |
| Eusebius of Rome | 310 | 17 August | Patriarch of Rome, Venerable, Hieroconfessor |
| Eusebius of Vercelli | 371 | 2 August | Church Father, Bishop of Vercelli; who was exiled for opposing Arianism |
| Eutychian of Rome | 283 | 7 December | Patriarch of Rome, Venerable |
| Euthymius the Athonite | 1024 c. 1024 | 13 May | Venerable, Athonite monk; a.k.a. Euthymius of Athos |
| Euthymius the Great | 473 | 20 January | Desert Father, Hegumen, Venerable, the Great |
| Euthymius II of Novgorod | 1458 | 11 March | Archbishop of Novgorod |
| Euthymius of Perugia | 301–400 | 29 August | Father of St. Crescentius |
| Euthymius of Sardis | 831 | 26 December / 8 March | Bishop of Sardis, Venerable Hieromartyr |
| Euthymius of Tarnovo | 1404 c. 1404 | 20 January | Patriarch of Bulgaria |
| Euthymius the Younger | 898 | 15 October | Venerable, Athonite monk; a.k.a. Euthymius of Thessalonica and Euthymius the New |
| Evaristus | 0105 c. 105 | 26 October | Patriarch of Rome, Venerable Hieromartyr |
| Eve | Before the Great Flood | Sunday of the Holy Forefathers / Forgiveness Sunday | Foremother, Righteous, the Proto-Created, the first woman |
| Evodius of Antioch | 66 | 7 September / 4 January | Apostle of the Seventy, Patriarch of Antioch, Hieromartyr; a.k.a. Eudius/Eudias |
| Ewald the Black | 0695 c. 695 | 3 October | Venerable Martyr, Hieromonk, Hieromartyr, Missionary, brother of St. Ewald the White; a.k.a. Ewald the Dark |
| Ewald the White | 0695 c. 695 | 3 October | Venerable Martyr, Hieromonk, Hieromartyr, Missionary, brother of St. Ewald the Black; a.k.a. Ewald the Fair |
| Ezekiel | c. 570 BC | 21 July | Prophet; who wrote the Book of Ezekiel; a.k.a. Ezechiel |
| Ezra | c. 440 BC – c. 400 BC | Sunday of the Holy Forefathers | Prophet, High Priest; who wrote the Book of Ezra and Books of Chronicles; a.k.a. Esdras |
| Fabian of Rome | 250 | 5 August | Patriarch of Rome, Venerable Hieromartyr |
| Fabiola of Rome | 399 | 27 December | Venerable, Ascetic; a divorcee who married again before the death of her first husband and later repented |
| Fabius of Caesarea | 300 | 31 July | Martyr, Military Saint; who was martyred for refusing to bear an idolatrous standard |
| Fabrician and Philibert | 201–300 | 22 August | Martyrs |
| Faith of Conques | 287 | 6 October | Virgin Martyr; a.k.a. Foy and Fides |
| Faith, Hope, and Charity | 0137 c. 137 | 17 September | Virgin Martyrs; the latter saint a.k.a. Love |
| Felix I | 274 | 30 May | Patriarch of Rome, Venerable Hieromartyr |
| Felix III | 492 | 1 March | Patriarch of Rome, Venerable |
| Felix IV | 530 | 30 January | Patriarch of Rome, Venerable |
| Fevronia of Murom | 1228 | 25 June | Princess of Murom, Right-Believing, Wonderworker, wife of St. Peter of Murom |
| Firmilian of Caesarea | 0269 c. 269 | 28 October | Church Father, Bishop of Caesarea, Venerable |
| Flavian of Constantinople | 449 | 18 February | Archbishop of Constantinople, Venerable Hieromartyr or Hieroconfessor |
| Florentina of Cartagena | 0612 c. 612 | 20 June | Abbess, Venerable, sister of Saints Isidore and Leander of Seville and Fulgentius of Cartagena; a.k.a. Florence |
| Fortunatus of the Seventy | 33–120 | 15 June / 4 January | Apostle of the Seventy, companion of St. Achaicus of Corinth |
| Fortunatus of Spoleto | 0400 c. 400 | 1 June | Priest known for his love for the poor |
| Fortunatus of Todi | 537 | 14 October | Bishop of Todi, Venerable |
| Fructus | 0715 c. 715 | 25 October | Venerable |
| Frideswide | 0735 c. 735 | 19 October | Abbess, Venerable, English princess; a.k.a. Frithuswith |
| Fulgentius of Cartagena | 0633 c. 633 | 16 January | Bishop of Écija, Venerable, brother of Saints Isidore and Leander of Seville |
| Fulgentius of Ruspe | 532 | 1 January | Church Father, Bishop of Ruspe, Abbot, Venerable |
| Fyodor Ushakov | 1817 | 2 October / 23 July | Righteous, Military Saint, considered one of the greatest admirals in history |
| Gabriel | N/A | 26 March / 13 July / 8 November | Archangel, Taxiarch |
| Gabriel II of Constantinople | 1659 | 3 December | Ecumenical Patriarch of Constantinople, Metropolitan of Prousa, New Venerable Hieromartyr |
| Gabriel of Białystok | 1690 | 20 April | Child Martyr |
| Gabriel of Georgia | 1995 | 2 November | Fool for Christ, Wonderworker, Venerable, Hieroconfessor, Archimandrite |
| Gabriel of Lesnovo | 1050–1100 | 15 January | Venerable, founder of Lesnovo Monastery |
| Gaius of Ephesus | 33–150 | 5 November / 4 January | Apostle of the Seventy, Bishop of Ephesus |
| Gal I of Clermont | 554 | 1 July | Bishop of Clermont; a.k.a. Gall |
| Gall of Switzerland | 0645 c. 645 | 16 October | Apostle of Switzerland, Venerable, disciple of St. Columbanus |
| Gamaliel the Rabban | 40–100 | 2 August | Righteous; a pharisee who taught St. Paul the Mosaic Law and later converted to Christianity |
| Gelasius I of Rome | 496 | 21 November | Patriarch of Rome, Venerable; who fought against Monophysitism |
| Gelasius of Nilopolis | 401–500 | 31 December | Desert Father, Venerable |
| Geminian of Modena | 348 | 31 January | Bishop of Modena, Venerable; who fought against Arianism and Jovinianism |
| Genevieve of Paris | 512 | 21 November | Venerable |
| Gennadius of Constantinople | 471 | 31 August | Patriarch of Constantinople, Venerable |
| Gennadius of Novgorod | 1505 | 4 December | Archbishop of Novgorod, Venerable; who fought against the Heresy of the Judaizers; a.k.a. Gennady of Novgorod |
| Gennadius Scholarius | 1464 | 25 August | Ecumenical Patriarch of Constantinople, Venerable; the first one after the Fall of Constantinople |
| George of Amastris | 825 | 21 February | Bishop of Amastris, Venerable |
| George Bogić | 1941 | 4 June | New Hieromartyr; native name Đorđe Bogić |
| George of Chqondidi | 1118 | 12 September | Archbishop of Chqondidi, Venerable; who advised St. David IV |
| George the Confessor | 814 | 19 April | Bishop of Antioch of Pisidia, Venerable Hieroconfessor; a.k.a. George of Antioch |
| George of Drama | 1959 | 24 October | New Venerable Confessor, Righteous, native name Georgios Karslidis |
| George the Hagiorite | 1065 | 27 June | Hegumen of Iviron Monastery, Venerable |
| George of Kratovo | 1515 | 11 February / 26 May | New Martyr; a.k.a. George the New of Sofia |
| George of Lodève | 0884 c. 884 | 19 February | Venerable |
| George of Lydda | 303 | 23 April | Great Martyr, Trophy-Bearer, Victory-Bearer, Wonderworker |
| George of Mogilev | 1795 | 12 February / Third Sunday after Pentecost | Archbishop of Mogilev, Venerable |
| George the Standard-Bearer | 821 | 7 April | Archbishop of Mytilene, Venerable Hieroconfessor, iconodule |
| George II of Vladimir | 1238 | 4 February | Grand Prince of Vladimir, Martyr; a.k.a. Georgy II Vsevolodovich and Yuri II of Vladimir |
| George of Vienne | 0670 c. 670 / c. 699 | 2 November | Archbishop of Vienne, Venerable |
| Georgia of Clermont | 0500 c. 500 | 15 February | Venerable anchoress |
| Georgy Kossov | 1928 | 8 September / 9 December | Priest, Starets, Hieroconfessor; a.k.a. Yegor Chekryakovsky |
| Gerasimus II of Alexandria | 1714 | 15 January | Patriarch of Alexandria, Venerable; a.k.a. Gerasimos Palladas |
| Gerasimus of the Jordan | 451 | 4 March | Hegumen, Venerable, name also spelled Gerasimos and Gerasim |
| Gerasimus of Vologda | 1178 | 4 March | Venerable, Wonderworker; a.k.a. Herasmus of Vologda |
| Gervasios of Patras | 1964 | 30 June | Venerable Hieromonk, native name Gervasios Paraskevopoulos |
| Ghislain | 680 | 9 October | Abbot, Venerable Confessor, anchorite |
| Gideon | c. 1200 BC – c. 1101 BC | 26 November | Judge, Righteous |
| Gobnait | 601–721 | 11 February | Abbess, Venerable, monastic foundress; a.k.a. Gobnat, Mo Gobnat, Abigail and Deborah |
| Godehard of Hildesheim | 1038 | 4 May | Bishop of Hildesheim, Venerable |
| Gorazd of Moravia | 885–900 | 27 July | Bishop of Moravia, Venerable, one of the 7 Apostles of Bulgaria, disciple of Saints Cyril and Methodius |
| Gorazd of Prague | 1942 | 22 August | Metropolitan of the Czech Lands and Slovakia, Bishop of Prague, New Venerable Hieromartyr; a.k.a. Gorazd Pavlík |
| Gordius | 320 | 3 January | Martyr; a.k.a. Gordinus |
| Gorgonia | 370 | 23 February | Righteous, sister of St. Gregory of Nazianzus |
| Gobron | 914 | 17 November | Martyr, Military Saint |
| Gorgonius of Nicomedia | 304 | 3 September | Martyr |
| Gregory V of Constantinople | 1821 | 10 April | Ecumenical Patriarch of Constantinople, Venerable, Hieromartyr |
| Gregory of Agrigento | 638 | 23 November | Bishop of Agrigento, Venerable |
| Gregory of Decapolis | 816 | 20 November | Venerable, Wonderworker; a.k.a. Gregory the Decapolite |
| Gregory of Khandzta | 861 | 5 October | Venerable Hieromonk; who founded many monasteries |
| Gregory of Nazianzus | 390 | 25 January | Theologian, Cappadocian Father, Desert Father, Archbishop of Constantinople, Venerable |
| Gregory of Nazianzus the Elder | 374 | 1 January | Bishop of Nazianzus, the Elder, father of St. Gregory of Nazianzus |
| Gregory of Neocaesarea | 270 | 17 November | Church Father, Bishop of Neocaesarea, Wonderworker; a.k.a. Gregory Thaumaturgus |
| Gregory of Nyssa | 394 | 10 January | Theologian, Cappadocian Father, Bishop of Nyssa |
| Gregory of Sinai | 1346 | 11 February / 6 April / 8 August / 27 November | Venerable |
| Gregory of Tours | 594 | 17 November | Church Father, Bishop of Tours |
| Gregory Palamas | 1359 | 14 November | Church Father, Pillar of Orthodoxy, Archbishop of Thessalonica; who defended hesychasm |
| Gregory I of Rome | 604 | 12 March | Patriarch of Rome, Venerable, the Great |
| Gregory II of Rome | 731 | 11 February | Patriarch of Rome, Venerable |
| Gregory III of Rome | 741 | 10 December | Patriarch of Rome, Venerable |
| Gregory the Illuminator | 332 | 30 September | Enlightener of Armenia, Equal-to-the-Apostles, Bishop of Armenia, Hieromartyr |
| Grigol Peradze | 1942 | 6 December | Archimandrite, New Venerable Hieromartyr |
| Habakkuk | 650–570 BC | 2 December | Prophet; who wrote the Book of Habakkuk; a.k.a. Habacuc |
| Haggai | 600–501 BC | 16 December | Prophet; who wrote the Book of Amos; a.k.a. Aggeus |
| Hananiah | 600–501 BC | Sunday of the Holy Forefathers | Holy Youth, Righteous, given the pagan name Shadrach |
| Hannah | 1100–1001 BC | Sunday of the Holy Forefathers | Prophetess, mother of Prophet Samuel |
| Hegesippus the Nazarene | 0180 c. 180 | 7 April | Church Father, the Nazarene; who wrote against Gnosticism and Marcionism |
| Helladius, Crescentius, Paul and Dioscorides | 244 / 326 | 28 May | Martyrs |
| Helena of Constantinople | 327 | 21 May | Equal-to-the-Apostles, Empress of the Roman Empire, mother of St. Constantine |
| Helier | 555 | 16 July | Venerable Martyr |
| Heimerad | 1019 | 28 June | Venerable, Fool for Christ, Hieromonk; a.k.a. Heimrad, Haimrad and Heimo |
| Herman of Alaska | 1837 | 9 August | Venerable, Wonderworker of all America |
| Herman of Kazan and Svyazhsk | 1567 | 6 November / 25 September / 23 June | Archbishop of Kazan, Venerable |
| Herman of Solovki | 1479 | 30 July / 8 August | Venerable, one of the founders of the Solovetsky Monastery |
| Herman of Valaam | 901–1500 | 28 June | Venerable, co-founder of the Valaam Monastery with St. Sergius of Valaam |
| Hermas of Dalmatia | 33–100 | 8 April / 4 January | Apostle of the Seventy, Bishop of Dalmatia, Hieromartyr; a.k.a. Hermes |
| Hermas of Philippopolis | 33–150 | 31 May / 5 November / 4 January | Apostle of the Seventy, Bishop of Philippopolis; a.k.a. Hermes |
| Hermione of Ephesus | 117 | 4 September | Unmercenary Healer, Martyr, daughter of St. Philip the Deacon |
| Hermogenes Dolganyov | 1918 | 16 June / 20 August | Bishop of Tobolsk, New Hieromartyr |
| Herodion of Patras | 0064 c. 64 – c. 68 | 8 April / 4 January | Apostle of the Seventy, Bishop of Patara, Hieromartyr, martyred with St. Olympas; a.k.a. Herodian or Rodion |
| Hesychius of Jerusalem | 0440 c. 440 | 28 March | Church Father; a.k.a. Hesychius the Priest and Hesychios |
| Hezekiah | c. 687 BC | 28 August / Cheesefare Saturday | Righteous, King of Judah |
| Hierotheos the Thesmothete | 52–100 | 4 October | Bishop of Athens, the Thesmothete |
| Hilarion the Great | 371 | 21 October | Desert Father, Venerable, founder of Palestinian monasticism |
| Hilarion of Kiev | 1054 / 1055 | 21 October | Metropolitan of Kiev and all Rus', Venerable; first non-Greek to hold the position |
| Hilarius of Rome | 468 | 28 February | Patriarch of Rome, Venerable; who fought against Nestorianism and Eutychianism; a.k.a. Hilary and Hilarus |
| Hilary of Arles | 449 | 5 May | Bishop of Arles |
| Hilary of Galeata | 558 | 15 May | Venerable, Hermit; who founded the Monastery of Galeata |
| Hilary of Poitiers | 368 | 13 January or 14 January | Church Father, Bishop of Poitiers, Hieroconfessor; who fought against Arianism |
| Hilda of Whitby | 680 | 17 November | Abbess of Whitby, Venerable |
| Hippolytus of Rome | 0235 c. 235 | 30 January | Church Father, Hieromartyr |
| Honoratus of Amiens | 0600 c. 600 | 16 May | Bishop of Amiens, Venerable |
| Honoratus of Arles | 429 | 16 January | Bishop of Arles, Venerable, founder of Lérins Abbey |
| Honorius of Canterbury | 653 | 30 September | Archbishop of Canterbury, Venerable |
| Hormisdas of Rome | 523 | 6 August | Patriarch of Rome, Venerable |
| Hosea | 720 BC | 17 October | Prophet; who wrote the Book of Hosea; a.k.a. Osee |
| Hubertus | 727 | 3 November | Apostle of the Ardennes, Bishop of Liège, Venerable |
| Hur | c. 1569 BC | Sunday of the Holy Forefathers | Prophet, High Priest, companion of Prophets Moses and Aaron |
| Hyginus of Rome | 142 | 11 January | Patriarch of Rome, Venerable Hieromartyr |
| Iestyn | 550–700 | 5 December | Venerable Martyr; who founded 2 churches in Gwynedd and Anglesey; a.k.a. Iestin, Justinus and Justinian |
| Ignatius Brianchaninov | 1867 | 30 April | Bishop of the Caucasus and Stavropol |
| Ignatius of Antioch | 0107 c. 107 | 20 December | God-Bearer (Theophoros), Patriarch of Antioch, Hieromartyr |
| Ignatius of Constantinople | 877 | 23 October | Ecumenical Patriarch of Constantinople, Venerable |
| Igor II of Kiev | 1147 | 19 September | Right-Believing, Martyr, Grand Prince of Kiev and Chernigov |
| Ilia Chavchavadze | 1907 | 20 July | Righteous, Martyr a.k.a. Elijah the Righteous |
| Ilya Pechersky [ru] | 1203 c. 1203 | 19 December | Venerable; most likely historical basis for the legendary Russian hero Ilya Muromets |
| Innocent of Alaska | 1879 | 13 April | Church Father, Apostle of America, Enlightener of the Aleuts, Metropolitan of Moscow, Venerable |
| Innocent of Irkutsk | 1731 | 26 November / 9 February / 2 September | Bishop of Irkutsk, Venerable |
| Innocent I of Rome | 417 | 28 July | Patriarch of Rome, Venerable, son of St. Anastasius I; who condemned Pelagianism |
| Irenaeus of Lyons | 200 | 23 August / 28 June | Church Father, Bishop of Lugdunum (now Lyons), Venerable Hieromartyr, disciple of St. Polycarp; who wrote Against Heresies against Gnosticism |
| Irenarch of Rostov | 1616 | 13 January | Venerable; a.k.a. Irenarchus and Irenarch the Recluse |
| Irene of Cappadocia | 912 | 28 July | Hegumenia of Chrysovolantou, Venerable; a.k.a. Irene Chrysovolantou |
| Irene of Hungary | 1134 | 13 August | Byzantine Empress, Venerable |
| Irene of Lesbos | 1463 | 9 April / Bright Tuesday | New Martyr |
| Irene of Macedonia [ru] | 315 | 5 May | Great Martyr, Virgin Martyr |
| Irene of Tomar | 653 | 20 October | Virgin Martyr, Venerable |
| Irmina of Oeren | 708 / 720 | 24 December | Abbess of Oeren, Venerable |
| Isaac | Patriarchal Age | Sunday of the Holy Forefathers | Patriarch, Righteous |
| Isaac I of Optina | 1894 | 22 August / | Hegumen of Optina Monastery, Archimandrite, Venerable, one of the 14 Optina Elders [ru] |
| Isaac II of Optina [ru] | 1938 | 26 December / | Hegumen of Optina Monastery, Venerable New Martyr, one of the 14 Optina Elders [ru] |
| Isaac of Armenia | 439 | 20 November | Patriarch of Armenia, Venerable |
| Isaac of Córdoba | 851 | 3 June | Venerable Martyr; one of the 48 Martyrs of Córdoba |
| Isaac of Spoleto | 550 | 12 April | Abbot of Spoleto, Venerable; a.k.a. Isaac the Syrian |
| Isaac the Confessor | 383 | 22 March / 30 May / 3 August | Venerable Confessor; a.k.a. Isaac of Dalmatia |
| Isaac the Syrian | 0700 c. 700 | 28 January | Church Father, Desert Father, Bishop of Nineveh, Venerable Hieromonk |
| Isaiah | 700–601 BC | 9 May | Prophet; who wrote the Book of Isaiah; a.k.a. Isaias |
| Isaiah of Gaza | 491 | 3 July | Desert Father, Venerable; a.k.a. Isaiah the Solitary, Isaias the Solitary, Abba Isaiah, and possibly also Isaiah of Scetis |
| Isaiah of Rostov | 1090 | 15 May | Bishop of Rostov, Venerable, Wonderworker |
| Isidora of Tabenna | 0365 c. 365 | 10 May | Venerable, Fool for Christ, Blessed |
| Isidore of Pelusium | 0450 c. 450 | 4 February | Church Father, Desert Father, Venerable Hieromonk; a.k.a. Isidore the Priest |
| Isidore of Seville | 636 | 4 April | Church Father, Bishop of Seville, Venerable, brother of Saints Leander of Seville and Fulgentius of Cartagena |
| Íte of Killeedy | 0570 c. 570 | 15 January | Venerable; a.k.a. Ytha and Meda |
| Jacob | Patriarchal Age | 13 December | Patriarch, Righteous; a.k.a. Israel |
| James Intercisus | 420 | 27 November | Great Martyr, Military Saint; a.k.a. James the Mutilated, James the Persian or Jacob the Persian and Akouphos |
| James the Deacon | 0671 c. 671 – c. 771 | 18 October | Deacon, Missionary, companion of St. Paulinus on the Gregorian mission |
| James the Great | 44 | 30 April / 30 June | Apostle, Martyr, son of Zebedee |
| James the Just | 62 / 69 | 23 October / 4 January | Brother of the Lord, Apostle of the Seventy, Patriarch of Jerusalem, Hieromartyr, the Just; who wrote the Epistle of James |
| James the Less | 0062 c. 62 | 9 October / 30 June | Apostle, Martyr, the Less, son of Alphaeus |
| Jason of Thessalonica | 33–150 | 28 April / 29 April / 4 January | Apostle of the Seventy, Bishop of Tarsus |
| Jegudiel | N/A | 8 November | Archangel |
| Jeremiah | c. 570 BC | 1 May | Prophet; who wrote the Book of Jeremiah, Book of Lamentations and the Books of Kings; a.k.a. Jeremias |
| Jeremiah I of Constantinople | 1546 | 13 January | Ecumenical Patriarch of Constantinople, Venerable, name also spelled Jeremias |
| Jeremiel | N/A | 8 November | Archangel |
| Jerome of Pavia | 787 | 19 July | Bishop of Pavia, Venerable |
| Jerome of Stridon | 420 | 15 June | Church Father, Blessed |
| Joachim | c. 15 BC | 9 September | Father of the Virgin Mary, Righteous |
| Joachim of Korsun | 1030 | 19 June | Archbishop of Novgorod, Venerable |
| Joanna | 36–100 | 27 June / Sunday of the Holy Myrrhbearers | Myrrhbearer, wife of Chuza |
| Joasaph of Belgorod | 1754 | 10 December | Bishop of Belgorod, Venerable |
| Job | c. 1350 BC | 6 May | Righteous, the Long-suffering |
| Job of Manyava | 1621 | 24 June | Hegumen, Venerable; who founded of Manyava Skete |
| Job of Moscow | 1607 | 19 June | Patriarch of Moscow |
| Job of Pochayiv | 1651 | 28 October | Hegumen, Venerable, Wonderworker |
| Joel | 750 BC | 19 October | Prophet; who wrote the Book of Joel |
| John and Paul | 361–363 | 26 June | Martyrs |
| John Angeloptes | 433 | 27 November | Bishop of Ravenna, Venerable |
| John Angelus | 1050 | 31 January | Venerable |
| John Calybite | 0450 c. 450 | 15 January | Venerable, the Hut-Dweller, name also spelled Calabites, Calibita, Chalybita, Calabytes and Kalabytes |
| John Cassian | 433 | 23 July | Church Father, Desert Father, Venerable; a.k.a. John the Ascetic and John Cassian the Roman |
| John Chrysostom | 407 | 27 January | Church Father, Archbishop of Constantinople, Venerable Hieroconfessor, the Golden-Tongued; a.k.a. John I of Constantinople |
| John Climacus | 606 | 29 February / 28 February | Church Father, Venerable; a.k.a. John of the Ladder, John Scholasticus and John Sinaites |
| John Gradenigo | 1025 | 5 December | Venerable, Hermit |
| John I of Naples | 401–500 | 22 June | Bishop of Naples, Venerable |
| John I of Ravenna | 494 | 12 June | Bishop of Ravenna, Venerable |
| John I of Rome | 526 | 18 May | Patriarch of Rome, Venerable |
| John III of Constantinople | 577 | 21 February | Patriarch of Constantinople, Venerable; a.k.a. John Scholasticus and John the Scholastic |
| John IV of Constantinople | 595 | 2 September / 30 August | Ecumenical Patriarch of Constantinople, Venerable; a.k.a. John the Faster and John Nesteutes |
| John IV of Naples | 835 | 22 June | Bishop of Naples, Venerable, the Peacemaker |
| John V of Constantinople | 674 | 18 August | Ecumenical Patriarch of Constantinople, Venerable |
| John VIII of Constantinople | 1075 | 30 August | Ecumenical Patriarch of Constantinople, Venerable; a.k.a. John Xiphilinos |
| John Kochurov | 1917 | 31 October | New Hieromartyr, Protomartyr of the New Martyrs and Confessors of the Russian Orthodox Church |
| John Theristus | 1129 | 24 February | Venerable, the Harvester |
| John Vincent | 1012 | 21 December | Archbishop of Ravenna, Venerable, Hermit |
| John of Autun | 33–1054 | 29 October | Bishop of Autun, Venerable |
| John of Bergamo | 690 | 11 July | Bishop of Bergamo, Venerable |
| John of Beverley | 721 | 7 May | Bishop of York, Venerable |
| John of Châlon | 475 | 9 May | Bishop of Chalon-sur-Saône, Venerable |
| John of Chinon | 501–600 | 27 June | Venerable, Hermit |
| John of Constantinople | 839 | 27 April | Hegumen, Venerable Confessor, iconodule |
| John of Damascus | 749 | 4 December | Church Father, Venerable Hieromonk, hymnographer and polymath; a.k.a. John (the) Damascene |
| John of Egypt | 0394 c. 394 | 29 March | Desert Father, Venerable, Anchorite; a.k.a. John of Lycopolis, John the Hermit and John the Anchorite |
| John of Gorze | 975 | 27 February | Abbot of Gorze Abbey, Venerable |
| John of Gothia | 0791 c. 791 | 26 June | Bishop of Gothia (Gothic Crimea), Venerable |
| John of Karpathos | 1001–1500 | 25 August | Bishop of Karpathos, Venerable |
| John of Kronstadt | 1908 | 20 December | Righteous, Priest |
| John of Moscow | 1589 c. 1589 | 3 July | Blessed, Fool for Christ, Wonderworker of Moscow |
| John of Novgorod | 1186 | 7 September / 1 December | Archbishop of Novgorod, Wonderworker, Venerable |
| John of Pavia | 813 | 27 August | Bishop of Pavia, Venerable |
| John of Réôme | 539 | 28 January | Venerable, Hermit |
| John of Shanghai and San Francisco | 1966 | 2 July | Archbishop of Shanghai and San Francisco, Wonderworker, native name John Maximovitch |
| John of Sonkajanranta | 1918 | 13 July | Martyr, Confessor, Enlightener, native name Johannes Karhapää |
| John of Syracuse | 609 | 23 October | Bishop of Syracuse, Venerable |
| John of Tobolsk | 1715 | 10 June | Metropolitan of Tobolsk and all Siberia, Wonderworker, Venerable, native name Ioann Maksimovich Vasilkovski |
| John of Tuy | 801–900 | 24 June | Hermit |
| John of Valamo | 1958 | 5 June | Venerable |
| John of Verona | 601–700 | 6 June | Bishop of Verona, Venerable |
| John the Apostle | 100 | 26 September / 30 June | Apostle, Evangelist, Theologian, Beloved Friend of Christ, son of Zebedee; who wrote the Gospel of John, Johannine epistles, and the Book of Revelation; a.k.a. John of Patmos |
| John the Baptist | 36 | 7 January / 24 June / 23 September / 29 August | Prophet, Forerunner, the Baptist |
| John the Dwarf | 0405 c. 405 | 9 November | Desert Father, Venerable; a.k.a. John the Short |
| John the Good | 0660 c. 660 | 10 January | Bishop of Milan, Venerable; who fought against Arianism and Monothelitism; a.k.a. John Camillus |
| John the Hairy | 1580 | 12 November | Blessed, Fool for Christ, the Hairy; a.k.a. John of Rostov and John the Merciful of Rostov |
| John the Hieromartyr | 362 | 23 June | Hieromartyr |
| John the Merciful | 616–620 | 12 November | Patriarch of Alexandria; a.k.a. John V Eleemon, John the Almsgiver, John the Almoner and John the Compassionate |
| John the New Merciful | 1190 c. 1190 | 29 April | Metropolitan of Thebes, Venerable; a.k.a. John Kaloktenes |
| John the Prophet | 0543 c. 543 | 6 February | Desert Father, Venerable; author (together with St. Barsanuphius the Great) of over 800 letters giving spiritual direction that influenced Byzantine monasticism |
| John the Russian | 1730 | 27 May | Confessor of the Faith |
| John the Saxon | 0895 c. 895 | 22 February | Abbot of Athelney, Venerable; a.k.a. John the Saxon, John of Saxony or Scotus |
| Jonah | 800–701 BC | 21 September | Prophet; who wrote the Book of Jonah; a.k.a. Jonas |
| Jonah of Manchuria | 1925 | 7 October | Enlightener and Bishop of Hankou, Venerable |
| Jonah of Moscow | 1461 | 15 June | Metropolitan of Kiev and all Rus', Venerable |
| Jonathan | c. 1010 BC | Sunday of the Holy Forefathers | Righteous, friend of Prophet David |
| Josaphat of India | 350–450 | 26 August / 19 November | Prince of India; a.k.a. Budhasaf |
| Joseph the Betrothed | 8–25 | Sunday after Christmas / Sunday of the Holy Forefathers | Righteous, the earthly father of Jesus Christ, who was betrothed to the Virgin Mary; a.k.a. Joseph of Nazareth |
| Joseph, son of Jacob | c. 1700 BC | 31 March / Sunday of the Holy Forefathers / Holy Monday | Patriarch, Righteous, the All-comely, the Fair, founder of the Tribe of Joseph and son of Patriarch Jacob |
| Joseph of Arimathea | 33–100 | 31 July / Third Sunday of Easter | Righteous, Secret Disciple of Jesus |
| Joseph of Freising | 764 | 17 January | Bishop of Freising, Venerable; a.k.a. Joseph of Verona |
| Joseph the Hesychast | 1959 | 16 August | Venerable, Hesychast, the Cave-Dweller |
| Joseph the Hymnographer | 886 | 4 April | Venerable, Hymnographer |
| Joseph of Panephysis | 301–500 | 17 June | Desert Father, Venerable; a.k.a. Joseph of Panepho and Joseph the Anchorite |
| Joshua | 1544 BC | 1 September / Sunday of the Holy Forefathers | Righteous, son of Nun; who succeeded Prophet Moses as leader of the Israelites |
| Jude the Apostle | 65 | 19 June / 30 June | Brother of the Lord, Apostle, Martyr; who wrote the Epistle of Jude; a.k.a. Lebbaeus and Thaddeus |
| Judith | c. 550 BC – c. 450 BC | Sunday of the Holy Forefathers | Righteous |
| Juliana of Lazarevo | 1604 | 2 January | Righteous |
| Juliana of Nicomedia | 0304 c. 304 | 21 December | Virgin Martyr |
| Julius and Aaron | 0305 c. 305 | 1 July | Martyrs |
| Julius of Novara | 390 / 401 | 31 January | Missionary Priest |
| Julius I of Rome | 352 | 12 April | Patriarch of Rome, Venerable |
| Julius of Rome | 190 | 19 August | Martyr |
| Julius the Veteran | 304 | 27 May | Martyr, the Veteran, Military Saint |
| Junia | 33–100 | 17 May | Martyr |
| Junian of Mairé | 587 | 13 August | Venerable, Hermit, founder of Mairé monastery |
| Junian of Saint-Junien | 401–500 | 16 October | Venerable, Hermit |
| Justin Martyr | 165 | 1 June | Church Father, Philosopher, Martyr |
| Justin of Ćelije | 1979 | 1 June | Hegumen of Ćelije Monastery, Venerable, native name Justin Popović |
| Justin of Chieti | 0540 c. 540 | 1 January | Bishop of Chieti |
| Justin the Confessor | 259 | 17 September | Hieromartyr |
| Justinian I | 565 | 14 November | Byzantine Emperor, Champion of Orthodoxy; a.k.a. Justinian the Great |
| Justinian of Brittany | 501–600 | 5 December | Venerable Martyr; a.k.a. Iestin |
| Justus and Pastor | 0304 c. 304 | 6 August | Child Martyrs |
| Justus of Beauvais | 287 | 18 October | Child Martyr |
| Justus of Canterbury | 627 | 10 November | Archbishop of Canterbury, Bishop of Rochester |
| Justus of Eleutheropolis | 33–100 | 30 October / 4 January | Apostle of the Seventy, Bishop of Eleutheropolis, Hieromartyr, the Just |
| Justus of Lyons | 390 | 2 September / 14 October | Bishop of Lyons, Venerable, Hermit |
| Justus of Trieste | 303 | 2 November | Martyr |
| Justus of Urgell | 0527 c. 527 | 28 May | Bishop of Urgell; who commentated on the Song of Songs |
| Juvenaly of Alaska | 1796 | 24 September | Protomartyr of America, Hieromartyr |
| Karbelashvili Brothers | 1879–1936 | 6 September | Brothers; whose names were Pilimon, Andria, Petre, Polievktos and Vasil |
| Kassia the Hymnographer | 865 | 7 September | Venerable, the Hymnographer; a.k.a. Kassiani and Cassia |
| Kenan | 1535 AM | Sunday of the Holy Forefathers | Forefather, Righteous, name also spelled Qenan, Kaynan or Cainan |
| Kevin of Glendalough | 618 | 3 June | First Abbot of Glendalough, Venerable |
| Kieran the Elder | 0530 c. 530 | 5 March | Bishop of Ossory, one of the twelve Apostles of Ireland, the Elder; a.k.a. Ciarán mac Luaign and Ciarán of Saigir |
| Kieran the Younger | 0556 c. 556 | 9 September | Abbot of Clonmacnoise, Venerable, one of the twelve Apostles of Ireland, the Younger; a.k.a. Ciarán mac an tSaeir, Ceran, Queran and Queranus |
| Kilian | 689 | 8 July | Apostle to the Franconians, Bishop of Würzburg, Hieromartyr, name also spelled Killian and Cillian |
| Kuksha of the Kiev Caves | 1114 c. 1114 | 27 August | Venerable Martyr, Hieromartyr |
| Kuksha of Odessa | 1964 | 16 September | Venerable Hieromonk |
| Laura of Córdoba | 864 | 19 October | Abbess, Venerable Martyr; one of the 48 Martyrs of Córdoba |
| Laurence of Canterbury | 619 | 2 February | Archbishop of Canterbury |
| Laurence of Siponto | 0546 c. 546 | 7 February | Bishop of Siponto; a.k.a. Lawrence Majoranus |
| Laurence the Illuminator [nl] | 576 | 3 February | Bishop of Spoleto; Venerable, he is given the epithet Illuminator for his ability to heal both physical and spiritual blindness, per holy tradition |
| Lawrence of Novara | 0397 c. 397 | 30 April | Martyr; who was martyred with a group of children he instructed |
| Lawrence of Rome | 258 | 10 August | Deacon, Hieromartyr |
| Lazar of Serbia | 1389 | 15 June | Right-Believing, Great Martyr, Prince of Serbia |
| Lazarus of Bethany | 33–100 | 17 March / 17 October / Lazarus Saturday | Friend of Christ, the Four-Days-Dead, Hierarch |
| Lazarus of Milan | 0450 c. 450 | 11 February | Archbishop of Milan, Venerable |
| Lazarus the Iconographer | 865 / 867 | 17 November | Venerable, Iconographer, iconodule; a.k.a. Lazarus Zographos |
| Leander of Seville | 600 | 27 February | Bishop of Seville, Venerable, brother of Saints Isidore of Seville and Fulgentius of Cartagena |
| Leo I of Rome | 461 | 18 February | Church Father, Patriarch of Rome, Venerable; a.k.a. Leo the Great |
| Leo I the Thracian | 474 | 20 January | Right-Believing; a.k.a. Leo the Great |
| Leo II of Rome | 683 | 3 July | Patriarch of Rome, Venerable |
| Leo III of Rome | 816 | 12 June | Patriarch of Rome, Venerable |
| Leo and Paregorius | 0260 c. 260 | 18 February | Martyrs |
| Leo of Catania | 787 | 20 February | Bishop of Catania, Wonderworker, Hieroconfessor |
| Leo of Cappadocia | 0578 c. 578 – c. 582 | 29 February / 28 February | Venerable; a.k.a. Leo the Cappadocian |
| Leo of Montefeltro | 366 | 1 August | First Bishop of Montefeltro |
| Leo of Nonantola | 1000 | 20 November | Abbot of Nonantola Abbey, Venerable |
| Leo of Rouen | 0900 c. 900 | 1 March | Bishop of Rouen, Hieromartyr; a.k.a. Leo of Carentan |
| Leo of Sens | 541 | 22 April | Bishop of Sens |
| Leo of Troyes | 0550 c. 550 | 25 May | Abbot of Mantenay, Venerable |
| Leoluca | 900 | 1 March | Abbot of Corleone, Venerable; a.k.a. Leone Luca, Leo Luke of Corleone, or Luke of Sicily |
| Leodegar of Autun | 0678 c. 678 | 2 October | Bishop of Autun; Venerable Hieromartyr |
| Leontius Stasievich | 1972 | 28 January | Archimandrite, New Venerable Hieroconfessor; one of the New Martyrs and Confessors of the Russian Orthodox Church |
| Liberius of Rome | 366 | 27 August | Patriarch of Rome, Venerable |
| Linus of Rome | 0078 c. 78 | 5 November / 4 January | Apostle of the Seventy, Patriarch of Rome, Venerable Hieromartyr |
| Longinus the Centurion | 33–100 | 16 October | The Centurion, Martyr; who pierced the side of Jesus during the Crucifixion |
| Lot | c. 2000 BC – c. 1901 BC | 9 October / Sunday of the Holy Forefathers | Righteous, nephew of Patriarch Abraham |
| Lot of Egypt | 0401 c. 401 | 22 October | Desert Father, Venerable |
| Luarsab II of Kartli | 1622 | 21 June | Martyr, King of Kartli |
| Lubentius of Dietkirchen | 0370 c. 370 | 13 October | Priest |
| Lucanus of Sabiona | 401–500 | 30 October | Martyr; a.k.a. Lucanus of Säben |
| Lucian of Antioch | 312 | 15 October | Church Father, Presbyter, Hieromartyr |
| Lucius of Adrianople [ca] | 0350 c. 350 | 11 February | Bishop of Adrianople, Hieromartyr |
| Lucius of Britain | 101–200 | 3 December | King of the Britons |
| Lucius of Laodicea | 33–150 | 22 April / 10 September / 4 January | Apostle of the Seventy, Bishop of Laodicea; a.k.a. Lucius of Cyrene, Luke and Loukias |
| Lucius I of Rome | 254 | 4 March | Patriarch of Rome, Venerable Hieromartyr or Hieroconfessor |
| Lucretia of Mérida [sco] | 306 | 23 November | Virgin Martyr |
| Lucy and Geminian | 0300 c. 300 | 16 September | Martyrs |
| Lucy of Syracuse | 304 | 13 December | Virgin Martyr |
| Ludger of Utrecht | 809 | 26 March | Apostle of Saxony, first Bishop of Münster, Venerable; who founded Werden Abbey |
| Ludmila of Bohemia | 921 | 16 September | Martyr, Princess of Czechia; a.k.a. Ludmilla |
| Luka Zhidiata | 1059 c. 1059 | Third Sunday after Pentecost | Archbishop of Novgorod, first Russian to hold the position |
| Luke of Steiris | 953 | 7 February | Venerable, Wonderworker; a.k.a. Luke the Younger, Luke Thaumaturgus and Luke of Hellas |
| Luke the Evangelist | 84–100 | 22 April / 18 October / 4 January | Evangelist, Apostle of the Seventy, Martyr; who wrote the Gospel of Luke and the Acts of the Apostles |
| Luke the Stylite | 0970 c. 970 | 11 December | Venerable, Stylite |
| Luke the Surgeon | 1961 | 29 May | Bishop of Crimea, Wonderworker, Venerable Confessor, Blessed; a.k.a. Luke of Simferopol and Luke of Crimea; native name Luka Voyno-Yasenetsky |
| Lullus of Mainz | 786 | 16 October | Archbishop of Mainz, first Abbot of Hersfeld Abbey, Venerable, Benedictine monk; a.k.a. Lull and Lul |
| Luxorius | 303 | 21 August | Martyr |
| Macarius of Alexandria | 394–395 | 19 January | Church Father, Desert Father, Venerable |
| Macarius of Corinth | 1805 | 17 April | Metropolitan of Corinth, Venerable |
| Macarius of Jerusalem | 0335 c. 335 | 10 March | Patriarch of Jerusalem; who fought against Arianism |
| Macarius of Moscow | 1563 | 30 December | Metropolitan of Moscow and all Rus', Venerable |
| Macarius of Unzha | 1444 | 25 July | Hegumen of Zheltovod and Unzha, Venerable |
| Macarius the Confessor | 840 | 18 August | Hegumen of the Monastery of Pelekete, Venerable Confessor, iconodule' a.k.a. Macarius of Pelekete |
| Macarius the Great | 391 | 19 January | Church Father, Desert Father, Venerable; a.k.a. Macarius the Elder and Macarius of Egypt |
| Macedonius II of Constantinople | 0517 c. 517 | 25 April | Patriarch of Constantinople, Venerable |
| Macrina the Younger | 379 / 380 | 19 July | Venerable, sister of St. Basil and St. Gregory |
| Malachi | 500–401 BC | 3 January | Prophet; who wrote the Book of Malachi; a.k.a. Malachias |
| Manasseh | c. 1550 BC – c. 1440 BC | Sunday of the Holy Forefathers | Patriarch, Righteous, son of Patriarch Joseph, founder of the half-tribe of Manasseh; a.k.a. Manasses and Menashe |
| Manuel II Palaiologos | 1425 | 21 July | Byzantine Emperor, Venerable Monk |
| Marcellinus of Rome | 304 | 7 June | Patriarch of Rome, Venerable, possibly a hieromartyr |
| Marcellus I of Rome | 309 | 7 June | Patriarch of Rome, Venerable, Hieroconfessor |
| Mardarije of Lješanska, Libertyville and All America | 1935 | 12 December | Serbian Orthodox Bishop of America and Canada, Venerable; a.k.a. Mardarije Uskoković |
| Maria Romanova | 1918 | 17 July | Passion bearer, one of the Romanov Martyrs |
| Mark of the Caves | 1080 c. 1080 – c. 1120 | 29 December / 28 September | Venerable; a.k.a. Mark the Grave-digger |
| Mark of Ephesus | 1444 | 19 January | Church Father, Pillar of Orthodoxy, Archbishop of Ephesus, Hesychast; who rejected the uniate Council of Basel-Ferrara-Florence |
| Mark of Rome | 336 | 7 October | Patriarch of Rome, Venerable |
| Mark the Evangelist | 68 | 25 April | Apostle of the Seventy, Patriarch of Alexandria, Evangelist, Hieromartyr; who wrote the Gospel of Mark |
| Martha of Bethany | 33–100 | 4 June / Sunday of the Holy Myrrhbearers | Myrrhbearer, sister of St. Lazarus |
| Martin of Braga | 580 | 20 March | Church Father, Apostle to the Suevi, Bishop of Mondoñedo and Braga, Hieromonk; a.k.a. Martin of Dumio |
| Martin of Tours | 397 | 12 October | Church Father, Bishop of Tours, Venerable, Military Saint; who opposed Arianism and Priscillianism |
| Martin of Vertou | 601 | 24 October | Venerable; who founded the Monastery of Vertou |
| Martin of Vienne | 0132 c. 132 | 1 July | Bishop of Vienne, Venerable |
| Martin the Confessor | 655 | 14 April | Patriarch of Rome, Venerable Hieromartyr, Hieroconfessor |
| Martina of Rome | 228 | 30 January | Martyr |
| Mary | 0057 c. 57 | 25 March / 15 August / 8 September / 21 November | The Most Holy Mother of God (Theotokos, Bogorodica), Queen of Heaven, Panagia, Holy Virgin, Our Lady, Immaculate, Most Pure, Blessed |
| Mary of Bethany | 33–100 | 4 June / Sunday of the Holy Myrrhbearers | Myrrhbearer, sister of St. Lazarus |
| Mary of Clopas | 33–100 | 23 May / Sunday of the Holy Myrrhbearers | Myrrhbearer, wife of Clopas, daughter of St. Joseph |
| Mary Magdalene | 33–100 | 22 July / Sunday of the Holy Myrrhbearers | Equal-to-the-Apostles, Myrrhbearer |
| Mary of Egypt | 421 | 4 April | Venerable, Ascetic |
| Mary of Paris | 1945 | 20 July | Righteous, Martyr; a.k.a. Maria Skobtsova and Mother Maria |
| Matrona of Moscow | 1952 | 7 March / 19 April | Unmercenary Healer, Wonderworker, Righteous, Blessed, native name Matrona Nikonova |
| Matthew the Evangelist | 0068 c. 68 | 16 November / 30 June | Apostle, Evangelist, Martyr; who wrote the Gospel of Matthew |
| Matthias the Apostle | 63 | 9 August / 30 June | Apostle, Martyr; who replaced the position of Judas Iscariot after his suicide |
| Maurice of Agaunum | 287 | 22 February / 22 September / 27 December | Martyr, leader of the Theban Legion, Military Saint; a.k.a. Moritz, Morris, or Mauritius |
| Maxim of Gorlice | 1914 | 6 September | Hieromartyr, protomartyr of the Lemko people |
| Maximianus of Constantinople | 434 | 21 April | Archbishop of Constantinople, Venerable; a.k.a. Maximian |
| Maximilian of Antioch | c. 353 | 21 August | Martyr |
| Maximilian of Lorch | 284 | 12 October | Archbishop of Laureacum, Missionary, Venerable Hieromartyr; who founded the church of Lorch, Austria |
| Maximilian of Tebessa | 295 | 12 March | Martyr; who was martyred for refusing to do military service |
| Maximus III of Constantinople | 1482 | 17 November | Ecumenical Patriarch of Constantinople, Venerable |
| Maximus of Kiev | 1305 | 6 December | Metropolitan of Kiev and all Rus', Venerable |
| Maximus of Turin | 465 | 25 June | Church Father, Bishop of Turin, Venerable |
| Maximus the Confessor | 662 | 21 January / 13 August | Theologian, Church Father, Venerable Confessor; a.k.a. Maximus the Theologian and Maximus of Constantinople |
| Maximus the Greek | 1556 | 21 January | Venerable |
| Meletius of Antioch | 381 | 12 February | Church Father, Patriarch of Antioch, Bishop of Sebaste; who fought against Arianism |
| Meletius I Pegas | 1601 | 13 September | Patriarch of Alexandria |
| Mellitus of Canterbury | 624 | 24 April | Archbishop of Canterbury, Bishop of London, Abbot, Venerable |
| Micah | c. 730 BC | 14 August | Prophet; who wrote the Book of Micah; a.k.a. Micheas |
| Melchizedek | c. 1933 BC – c. 1800 BC | 22 May / Sunday of the Holy Forefathers | High Priest, Righteous, King of Salem |
| Melito of Sardis | 180 | 1 April | Church Father, Bishop of Sardis, Venerable |
| Menas of Egypt | 304 | 11 November | Great Martyr, Military Saint, name also spelled Minas, Mena, Mina and Meena |
| Mesrop the Translator | 0439 c. 439 | 17 February / 19 February | Priest, linguist and translator; who created the Armenian alphabet and Caucasian Albanian script; widely known as Mesrop Mashtots |
| Methodius I of Constantinople | 847 | 14 June | Ecumenical Patriarch of Constantinople, Venerable; name also written as Methodios |
| Methodius of Olympus | 0311 c. 311 | 20 June | Church Father, Bishop of Olympus and Patara, Venerable Hieromartyr |
| Methodius of Thessaloniki | 885 | 11 May | Equal-to-the-Apostles, Teacher and Enlightener of the Slavs, Bishop of Sirmium, Venerable, Hieroconfessor, brother of St. Cyril |
| Metrophanes, Chi Sung | 1900 | 11 June | Hieromartyr, leader of the 222 Chinese Martyrs |
| Metrophanes of Byzantium | 326 | 4 June | Bishop of Byzantium, Venerable |
| Metrophanes of Voronezh | 1703 | 23 November | Bishop of Voronezh, Venerable |
| Michael | N/A | 8 November | Archangel, Taxiarch |
| Michael of Chernigov | 1246 | 20 September | Right-Believing, Confessor, Martyr, Grand Prince of Kiev, Prince of Novgorod, native name Mikhail Vsevolodovich |
| Michael I of Kiev | 992 | 15 June | Metropolitan of Kiev and all Rus', Venerable |
| Michael of Klopsk | 1456 | 11 January | Fool for Christ, Venerable |
| Michael of Tver | 1318 | 22 November | Right-Believing, Martyr, Prince of Tver, native name Mikhail Yaroslavich |
| Milburga of Wenlock | 715 | 23 February | Abbess of Wenlock, Venerable, Healer, name also spelled Milburgh and Mildburh |
| Miltiades of Rome | 314 | 10 December | Patriarch of Rome, Venerable when Christianity was legalised in the Roman empire and who fought against Donatism |
| Miriam | c. 1500 BC – c. 1301 BC | Sunday of the Holy Forefathers | Prophetess, Righteous, older sister of Prophets Moses and Aaron |
| Mirian III of Iberia | 361 | 1 October | Equal-to-the-Apostles, King of Georgia |
| Mishael | 600–501 BC | Sunday of the Holy Forefathers | Holy Youth, Righteous, given the pagan name Meshach |
| Modestus of Carantania | 0720 c. 720 – c. 772 | 5 February | Apostle of Carantania, Bishop of Carantania, Venerable |
| Modestus of Trier | 489 | 24 February | Bishop of Trier, Venerable |
| Moses | 1569 BC | 4 September / Sunday of the Holy Forefathers | God-seer, Prophet, brother of Prophet Aaron and Prophetess Miriam; who wrote the Pentateuch and Psalm 89 (90) |
| Moses the Black | 405 | 28 August | Desert Father, Venerable Hieromonk, Hieromartyr; a.k.a. Moses the Strong, Moses the Robber, Moses the Abyssinian and Moses the Ethiopian |
| Moses the Hungarian | 1043 | 26 July | Venerable, the Hungarian |
| Moses of Arabia | 0389 c. 389 | 7 February | Apostle of the Saracens, Bishop of Arabia, Venerable |
| Moses of Novgorod [ru] | 1362 | 25 January / 19 April | Bishop of Novgorod, Venerable |
| Mstislav I of Kiev | 1132 | 15 April | Right-Believing, Grand Prince of Kiev; a.k.a. Mstislav the Great |
| Mstislav Rostislavich of Smolensk | 1180 | 14 June | Right-Believing, Prince of Novgorod; a.k.a. Mstislav the Brave |
| Nahum | 700–612 BC | 1 December | Prophet; who wrote the Book of Nahum; a.k.a. Naum |
| Nana of Iberia | 301–400 | 1 October | Equal-to-the-Apostles, Queen of Georgia |
| Narcissus of Athens | 33–150 | 31 October / 4 January | Apostle of the Seventy, Bishop of Athens, Hieromartyr |
| Narcissus of Jerusalem | 0216 c. 216 | 7 August | Patriarch of Jerusalem |
| Narnus of Bergamo | 345 | 27 August | First Bishop of Bergamo, Venerable |
| Natalia of Nicomedia | 306 | 26 August | Martyr, wife of St. Adrian of Nicomedia |
| Natalis of Milan | 751 | 13 May | Bishop of Milan, Venerable |
| Natalis of Ulster | 564 | 27 January | Abbot of Cill, Naile and Daunhinis, Venerable |
| Nathan | c. 1000 BC – c. 901 BC | Sunday of the Holy Forefathers | Prophet |
| Nahum of Preslav | 910 | 23 December | Wonderworker, Equal-to-the-Apostles, Apostle of the Slavs |
| Nectarius of Constantinople | 397 | 11 October | Church Father, Archbishop of Constantinople, Venerable |
| Nehemiah | 444–344 BC | Sunday of the Holy Forefathers | Prophet; who wrote the Book of Nehemiah; a.k.a. Nehemias |
| Nektarios of Aegina | 1920 | 9 November | Metropolitan of Pentapolis, Wonderworker, Venerable; name also spelled Nectarios or Nectarius |
| Nemesion | 0257 c. 257 | 10 September | Bishop of Numidia, Venerable Hieromartyr; a.k.a. Nemesian, Nemesius and Nemesis |
| Neot of Cornwall | 877 | 31 July | Venerable, Hermit |
| Nephon II of Constantinople | 1508 | 11 August | Ecumenical Patriarch of Constantinople, Venerable |
| Nestor the Chronicler | 1114 c. 1114 | 27 October | Venerable, the Chronicler |
| Nicanor the Deacon | 33–36 | 28 December / 28 July / 4 January | Apostle of the Seventy, one of the seven Deacons, Hieromartyr |
| Nicanor the New [sr; bg] | 1990 | 19 February | Hegumen of Hilandar Monastery, Venerable; native name Nikanor Savić |
| Nicetas of Constantinople | 836 | 13 October | Venerable Confessor, iconodule; a.k.a. Nicetas the Patrician, Nicetas of Paphlagonia and Nicetas Monomachos |
| Nicetas of Medikion | 824 | 3 April | Hegumen of Medikion, Venerable, Wonderworker, Confessor, iconodule |
| Nicetas of Novgorod | 1109 | 31 January / 14 May | Archbishop of Novgorod, Venerable, Wonderworker |
| Nicetas of Remesiana | 414–420 | 22 June | Church Father, Bishop of Remesiana, Venerable |
| Nicetas the Stylite | 1186 | 24 May | Venerable Martyr, Wonderworker of Pereyaslavl-Zalessky, the Stylite; a.k.a. Nicetas Stylites |
| Nicholas of Japan | 1912 | 3 February | Equal-to-the-Apostles, Enlightener and Archbishop of Japan |
| Nicholas Kabasilas | 1392 | 20 June | Righteous, Priest; a.k.a. Nicholas Cabasilas |
| Nicholas of Lesvos | 1463 | 9 April / Bright Tuesday | New Martyr |
| Nicholas of Myra | 343 | 6 December | Archbishop of Myra, Defender of Orthodoxy, Wonderworker, Venerable; the historical inspiration for Santa Claus; a.k.a. Nicholas of Bari |
| Nicholas of Ohrid and Žiča | 1956 | 5 March / 20 April | Bishop of Ohrid and Žiča, Venerable, the New Chrysostom, native name Nikolaj Velimirović |
| Nicholas II of Russia | 1918 | 17 July | Emperor of All Russia, Passion bearer; head of the Romanov Martyrs |
| Nicholas Salos of Pskov | 1576 | 28 February | Blessed, Fool for Christ |
| Nicholas of Trani | 1091 | 2 June | Fool for Christ, widely known as Nicholas the Pilgrim |
| Nicodemus | 33–100 | 2 August / Sunday of the Holy Myrrhbearers | Righteous, Myrrhbearer |
| Nicodemus the Hagiorite | 1809 | 14 July | Venerable, Athonite monk; a.k.a. Nikodemos and Nicodemus of the Holy Mountain |
| Nikephoros I of Constantinople | 828 | 2 June | Ecumenical Patriarch of Constantinople, Venerable Hieroconfessor, iconodule |
| Nikon the Dry | 1101 | 11 December / 28 September / Second Sunday of Great Lent | Venerable, the Dry |
| Nikon the Metanoeite | 998 | 26 November | Venerable, the Metanoeite (the Preacher of Repentance) |
| Nikon of Optina [ru] | 1931 | 25 June | Venerable |
| Nilus the Younger | 1002 / 1005 | 26 September | Abbot, Venerable Confessor; a.k.a. Nilus of Calabria |
| Nilus of Sinai | 430 / 451 | 12 November | Church Father, Desert Father, Venerable; a.k.a. Nilus the Elder, Neilos, Nilus of Sinai, Nilus of Ancyra and Nil Postnik |
| Nilus of Sora | 1508 | 7 May | Hegumen, Venerable |
| Nino of Georgia | 0332 c. 332 | 14 January | Equal-to-the-Apostles, Enlightener of the Georgians; a.k.a. Nina, Nune, and Ninny |
| Niphont of Novgorod | 1156 | 8 April | Archbishop of Novgorod |
| Noah | c. 1998 BC | Sunday of the Holy Forefathers | Patriarch, Righteous |
| Non | 501–600 | 3 March | Mother of St. David |
| Nonna of Nazianzus | 0000 c. | 5 August | Mother of St. Gregory Nazianzus |
| Nonnus of Heliopolis | 471 | 10 November | Desert Father, Bishop of Heliopolis, Venerable |
| Nothhelm of Canterbury | 739 | 17 October | Archbishop of Canterbury, Venerable |
| Obadiah | 900–801 BC | 19 November | Prophet; who wrote the Book of Obadiah; a.k.a. Abdias |
| Odile of Alsace | 720 | 13 December | Abbess of Hohenburg, Venerable; a.k.a. Odilia and Ottilia |
| Odo of Cluny | 942 | 11 May | Abbot of Cluny, Venerable |
| Olaf II of Norway | 1030 | 29 July | King of Norway, Martyr |
| Olga Nikolaevna | 1918 | 17 July | Passion bearer; one of the Romanov Martyrs |
| Olga of Alaska | 1979 | 28 October | Righteous, the first canonised female American Orthodox saint; a.k.a. Olga Michael, Matuska Olga and Olga of Kwethluk |
| Olga of Kiev | 969 | 11 July | Equal-to-the-Apostles, Blessed, Princess of Kiev |
| Olympas | 0064 c. 64 – c. 68 | 10 November / 4 January | Apostle of the Seventy, Martyr, martyred with St. Herodion; a.k.a. Olympanus |
| Olympias the Deaconess | 409 | 25 July | Deaconess; a.k.a. Olympiada |
| Onesimus | 109 | 15 February / 4 January | Apostle of the Seventy, Bishop of Ephesus, Hieromartyr, former slave of St. Philemon |
| Onesiphorus | 33–100 | 7 September / 8 December / 4 January | Apostle of the Seventy, Bishop of Colophon and Corinth, Hieromartyr |
| Onuphrius the Great | 400 | 12 June | Desert Father, Venerable, the Great |
| Optatus of Milevis | 0387 c. 387 | 4 June | Church Father, Bishop of Milevis; who opposed Donatism; a.k.a. Optate |
| Or of Nitria | 0390 c. 390 | 7 August | Desert Father, Venerable |
| Orsisius | 301–400 | 15 June | Desert Father, Venerable, disciple of St. Pachomius; a.k.a. Arsisios |
| Oswald of Northumbria | 642 | 5 August | King of Northumbria, Martyr |
| Osyth | 653 | 7 October | Abbess, Venerable, name also spelled Osith |
| Ouen | 684 | 24 August | Bishop of Rouen; a.k.a. Audoin, Aldwin, Owen and Dado |
| Pabo Post Prydain | 0510 c. 510 | 9 November | King of the Pennines, Pillar of Britain, Venerable; who founded St Pabo's Church, Llanbabo |
| Pachomius the Great | 0348 c. 348 | 15 May | Church Father, Desert Father, Venerable, the Great; who founded coenobitic monasticism |
| Pacian of Barcelona | 0390 c. 390 | 9 March | Church Father, Bishop of Barcelona |
| Paisios of Mount Athos | 1994 | 12 July | Venerable, Athonite ascetic, name also spelled Paisius |
| Paisius the Great | 401–500 | 19 June | Desert Father, Venerable, name also spelled Paisios and Pishoy/Bishoy |
| Paisius of Hilendar | 1773 c. 1773 | 19 June | Venerable Hieromonk, native name Paìsiy Hilendàrski |
| Paisius Velichkovsky | 1794 | 15 November | Venerable |
| Palladius of Antioch | 390 | 28 January | Venerable; a.k.a. Palladius the Desert Dweller and Palladius the Hermit |
| Palladius of Auxerre | 661 | 10 April | Bishop of Auxerre, Abbot of the Abbey of Saint-Germain d'Auxerre, Venerable |
| Palladius of Embrun | 541 | 21 June | Bishop of Embrun |
| Palladius of Ireland | 457–461 | 7 July | Bishop of Ireland, Venerable |
| Palladius of Saintes | 0590 c. 590 | 7 October | Bishop of Saintes |
| Pambo of Nitria | 0375 c. 375 – c. 390 | 18 July | Desert Father, Venerable, disciple of St. Anthony; a.k.a. Pambo the Hermit |
| Pamphilus of Caesarea | 309 | 16 February | Church Father, Presbyter, Hieromartyr |
| Pantaleon of Nicomedia | 304 | 27 July | Unmercenary Healer, Great Martyr; a.k.a. Panteleimon |
| Paphnutius the Ascetic | 395–450 | 25 February | Desert Father, Venerable, the Ascetic, disciple of St. Macarius |
| Paphnutius of Jerusalem | 303–313 | 19 April | Bishop, Venerable Hieromartyr |
| Paphnutius of Thebes | 335–400 | 11 September | Desert Father, Bishop of Tais, Venerable |
| Papias of Hierapolis | 0130 c. 130 | 22 February | Church Father, Bishop of Hierapolis |
| Paraskeva of the Balkans | 1001–1100 | 27 October | Venerable, Ascetic, the Younger; a.k.a. Parascheva and Petka |
| Paraskevi of Rome | 0180 c. 180 | 26 July | Virgin Martyr; a.k.a. Parasceva |
| Parmenas the Deacon | 98 / 117 | 28 July / 4 January | Apostle of the Seventy, one of the seven Deacons, Hieromartyr |
| Parthenius the Martyr | 201–300 | 19 May | Martyr |
| Parthenius III of Constantinople | 1657 | 24 March | Ecumenical Patriarch of Constantinople, New Venerable Hieromartyr |
| Patapios of Thebes | 301–500 | 8 December | Venerable, Wonderworker, name also spelled Patapius |
| Patrick of Ireland | 461 / 492 | 17 March | Apostle of Ireland, Enlightener of the Irish, Church Father, Bishop of Armagh |
| Patrobas of Pottole | 33–100 | 5 November / 4 January | Apostle of the Seventy, Bishop of Neapolis (now Naples) and Puteoli; a.k.a. Patrobos, Patrobus or Parrobus |
| Paul the Apostle | 0068 c. 68 | 25 January / 10 February / 29 June | Apostle to the Gentiles, Martyr; who wrote the Pauline epistles; previously named Saul |
| Paul Aurelian | 0575 c. 575 | 12 March | Bishop of León, Venerable |
| Paul I of Constantinople | 0350 c. 350 | 6 November | Archbishop of Constantinople, Venerable Hieromartyr or Hieroconfessor; a.k.a. Paul the Confessor |
| Paul IV of Constantinople | 804 | 30 August | Ecumenical Patriarch of Constantinople, Venerable; a.k.a. Paul the Younger and Paul the New |
| Paul the Simple | 0339 c. 339 | 7 March / 4 October | Desert Father, Venerable |
| Paul of Taganrog | 1879 | 10 March / 7 June | Blessed lay starets, Righteous |
| Paul of Thebes | 341 | 15 January | Desert Father, Venerable; a.k.a. Paul the Anchorite, Paul the Hermit, and Paul the First Hermit |
| Paulinus of Antioch | 0067 c. 67 | 12 July | Bishop of Lucca, Venerable Hieromartyr |
| Paulinus II of Aquileia | 802 / 804 | 11 January | Bishop of Aquileia, Venerable |
| Paulinus of Nola | 431 | 22 June | Church Father, Bishop of Nola, Venerable, Hermit |
| Paulinus of Trier | 358 | 31 August | Bishop of Trier, Venerable; who died in exile due to his opposition to Arianism |
| Paulinus of York | 584 | 10 October | Bishop of York, Venerable |
| Pavin of Le Mans | 0703 c. 703 | 15 November | Abbot of St Mary's Monastery, Venerable; a.k.a. Paduinus |
| Pelagia of Diveyevo [ru; pl] | 1884 | 30 January | Fool for Christ, Blessed |
| Pelagia the Martyr | 301–305 | 4 May / 7 October | Virgin Martyr; a.k.a. Pelagia of Tarsus |
| Pelagia the Penitent | 301–500 | 8 October | Venerable, Ascetic; a.k.a. Pelagia of Antioch and Pelagia the Harlot |
| Pelagia of Tinos | 1834 | 23 July | Venerable; a nun who experienced a Marian apparition guiding her to find the icon of Our Lady of Tinos |
| Pelagia the Virgin | 303–305 | 8 October | Virgin Martyr; a.k.a. Pelagia of Antioch |
| Pelagius of Constance | 0283 c. 283 | 28 August | Deacon, Hieromartyr |
| Pelagius of Córdoba | 925 | 26 June | Martyr; a.k.a. Pelayo |
| Pelagius, Arsenius and Sylvanus | 0950 c. 950 | 30 August | Venerable Martyrs, Hermits |
| Peter the Aleut | 1815 c. 1815 | 24 September | Martyr of San Francisco, Protomartyr of America, the Aleut, native name Cungagnaq |
| Peter I of Alexandria | 311 | 25 November | Church Father, Patriarch of Alexandria, Hieromartyr |
| Peter the Apostle | 0064 c. 64 – c. 68 | 29 June / 30 June | Leader of the Apostles, Apostle, Patriarch of Rome, Hieromartyr, the All-Praised; who wrote 1 Peter and 2 Peter; a.k.a. Simon Peter and Simeon |
| Peter of Atroa | 837 | 3 January | Hegumen, Venerable |
| Peter of Braga | 45–60 | 26 April | Bishop of Braga, Venerable Hieromartyr; a.k.a. Peter of Rates |
| Peter of Canterbury | 0607 c. 607 | 6 January | Abbot of St Augustine's Abbey, Venerable, Missionary |
| Peter Chrysologus | 0450 c. 450 | 30 July | Church Father, Bishop of Ravenna, Hieroconfessor, the Golden-Worded |
| Peter of Krutitsy | 1937 | 10 October | Metropolitan of Krutitsy, Venerable Hieromartyr |
| Peter Mogila | 1647 | 1 January | Metropolitan of Kiev, Venerable |
| Peter of Moscow | 1326 | 21 December | Metropolitan of Moscow, Wonderworker of All Russia, Venerable |
| Peter of Murom | 1228 | 25 June | Prince of Murom, Right-Believing, Wonderworker, husband of St. Fevronia |
| Peter of Pavia | 0735 c. 735 | 7 May | Bishop of Pavia |
| Peter of Sebaste | 391 | 9 January | Bishop of Sebaste, Hieromartyr, brother of St. Basil the Great |
| Peter Urseolus | 987 | 10 January | Venerable, Hermit, Doge of Venice |
| Petroc | 0594 c. 594 | 4 June | Abbot of Lanwethinoc, Venerable, name also spelled Petrock, Pedrog and Perreux |
| Phanourios | 1306–1500 | 27 August | Great Martyr, the Newly-Revealed |
| Philemon | 54–68 | 19 February / 22 November / 4 January | Apostle of the Seventy, Bishop of Gaza, Hieromartyr, former slavemaster of St. Onesimus |
| Philetus and companions | 0121 c. 121 | 23 March / 27 March | Martyrs; whose names were Lydia, Macedo, Theoprepides, Amphilochius and Cronidas |
| Philibert of Jumièges | 684 | 20 August | Abbot of Jumièges Abbey and Rebais, Venerable; who founded Noirmoutier Abbey and restored other monasteries |
| Philip of Agira | 0401 c. 401 – c. 500 | 12 May | Apostle of the Sicilians, Hieromartyr |
| Philip of Fermo | 0270 c. 270 | 22 October | Bishop of Fermo, Hieromartyr |
| Philip of Gortyna | 180 | 11 April / 8 October (Church of Crete) | Bishop of Gortyna, Venerable, Apologist; who wrote a now-lost treatise against Gnosticism |
| Philip of Heraclea | 0304 c. 304 | 22 October | Bishop of Heraclea, Hieromartyr |
| Philip II of Moscow | 1569 | 9 January / 3 July | Metropolitan of Moscow and all Rus', Venerable Hieromartyr |
| Philip of Vienne | 0578 c. 578 | 3 February | Bishop of Vienne, Venerable |
| Philip of Zell [de] | 0770 c. 770 | 3 May | Venerable hermit; who founded a monastery in the German town of Zell [de] with his disciples |
| Philip the Apostle | 80 | 14 November / 30 June | Apostle, Martyr |
| Philip the Evangelist | 50–100 | 11 October / 4 January | Apostle of the Seventy, Evangelist, Bishop of Tralles, one of the seven Deacons |
| Philologus of Sinope | 33–100 | 5 November / 4 January | Apostle of the Seventy, Bishop of Sinope |
| Philothei of Athens | 1589 | 19 February | New Venerable Martyr; a.k.a. Philotheia or Philothea |
| Philotheus I of Constantinople | 1379 | 11 October | Ecumenical Patriarch of Constantinople, Venerable |
| Philoumenos of Jacob's Well | 1979 | 29 November | Hegumen and Guardian of Jacob's Well, New Venerable Hieromartyr |
| Phinehas | c. 1500 BC | 12 March | Righteous, High Priest, grandson of Prophet Aaron, name also spelled Phineas |
| Phlegon of Marathon | 33–100 | 8 April / 4 January | Apostle of the Seventy, Bishop of Marathon, Hieromartyr |
| Phoebe the Deaconess | 50–100 | 3 September | Deaconess |
| Photini of Samaria | 0066 c. 66 | 20 March | The Samaritan woman at the well, Martyr |
| Photius the Great | 893 | 6 February | Church Father, Equal-to-the-Apostles, Ecumenical Patriarch of Constantinople, Pillar of Orthodoxy, Venerable Hieroconfessor, the Great; a.k.a. Photios I of Constantinople |
| Pimen the Faster [ru] | 1141 | 7 August / 28 August | Hegumen of the Kiev Caves, Venerable, the Faster; a.k.a. Pimen of the Kiev Caves |
| Pior of Scetis | 350–400 | 17 June | Desert Father, Venerable, disciple of St. Anthony, name also spelled Prior |
| Pior Zatvirnyk [uk] | 1201–1300 | 4 October | Venerable |
| Piran | 0480 c. 480 | 5 March | Abbot, Venerable, name also spelled Pyran |
| Pitirim of Porphyry | 350–500 | 29 November | Desert Father, Venerable |
| Pius I | 154 | 11 July | Patriarch of Rome, Venerable Hieromartyr |
| Platon Kulbusch | 1919 | 14 January | Bishop of Reval (Tallinn), New Hieromartyr |
| Plegmund of Canterbury | 914 | 2 August | Archbishop of Canterbury, Venerable |
| Poemen the Great | 0450 c. 450 | 27 August | Church Father, Desert Father, Venerable, the Great, name also spelled Pimen |
| Polycarp of Smyrna | 155 | 23 February | Church Father, Bishop of Smyrna, Venerable Hieromartyr |
| Polyeuctus of Constantinople | 970 | 5 February | Ecumenical Patriarch of Constantinople, Venerable |
| Polyeuctus of Melitene | 259 | 9 January | Protomartyr of Melitene |
| Porphyrios of Kafsokalyvia | 1991 | 2 December | Venerable, Wonderworker, Hieromonk, name also spelled Porphyrius |
| Porphyrius of Gaza | 420 | 26 February | Bishop of Gaza |
| Praejectus | 676 | 25 January | Bishop of Clermont |
| Praxedes | 0165 c. 165 | 21 July | Virgin, sister of St. Pudentiana |
| Prochorus the Deacon | 0080 c. 80 – c. 100 | 28 July / 4 January | Apostle of the Seventy, one of the seven Deacons, Hieromartyr, disciple of St. John the Apostle whilst he was exiled on the island of Patmos |
| Proclus of Constantinople | 446 | 20 November | Church Father, Archbishop of Constantinople, Venerable |
| Procopius of Sázava | 1053 | 16 September | Abbot of Sázava Monastery, Venerable; a.k.a. Procopius the Czech |
| Procopius of Scythopolis | 303 | 8 July / 22 November | Great Martyr, Military Saint |
| Procopius of Ustyug | 1303 | 8 July | Fool for Christ, Venerable |
| Prosper of Aquitaine | 436 | 7 July | Church Father, Bishop of Aquitaine, Venerable |
| Prosper of Orléans | 0453 c. 453 | 29 July | Bishop of Orléans, Venerable |
| Prosper of Reggio | 0466 c. 466 | 25 June | Bishop of Reggio, Venerable |
| Publius of Malta | 112 / 125 | 13 March | First Bishop of Malta and early Bishop of Athens, Venerable Hieromartyr |
| Pudens | 54–68 | 15 April / 4 January | Apostle of the Seventy, Martyr |
| Pudentiana | 101–200 | 19 May | Virgin Martyr, sister of St. Praxedes; a.k.a. Potentiana |
| Quadratus of Athens | 129 | 21 September / 4 January | Apostle of the Seventy, Church Father, Bishop of Athens, Hieromartyr, apologist |
| Quadratus of Africa | 33–313 | 26 May | Martyr |
| Quadratus of Corinth | 249–251 | 10 March | Martyr |
| Quadratus of Herbipolis | 0257 c. 257 | 7 May | Martyr |
| Quadratus of Nicomedia | 253–260 | 10 March | Martyr |
| Quadratus of Utica | 259 | 21 August | Bishop of Utica, Hieromartyr |
| Quartus of Berytus | 33–150 | 10 November / 4 January | Apostle of the Seventy, Bishop of Berytus, Hieroconfessor |
| Quodvultdeus | 450 | 19 February | Church Father, Bishop of Carthage, Venerable |
| Rabulas of Samosata | 530 | 19 February | Venerable, name also written as Rabula and Rabbula |
| Razhden the Protomartyr | 457 | August 16 | Martyr |
| Rachel | Patriarchal Age | Sunday of the Holy Forefathers | Righteous, wife of Patriarch Jacob, mother of Patriarchs Benjamin and Joseph |
| Raphael | N/A | 8 November | Archangel |
| Raphael of Lesbos | 1463 | 9 April / Bright Tuesday | New Martyr |
| Raphael of Brooklyn | 1915 | 27 February | Bishop of Brooklyn, Venerable |
| Rastislav of Moravia | 870 | 11 May | Equal-to-the-Apostles, Passion bearer, Confessor, Duke of Moravia; who ordered Saints Cyril and Methodius to translate various liturgical books into Slavonic; a.k.a. Rostislav |
| Rebecca | Patriarchal Age | Sunday of the Holy Forefathers | Righteous, wife of Patriarch Isaac, mother of Patriarch Jacob and Esau |
| Reginos of Skopelos | 362 | 25 February | Bishop of Skopelos, VenerableHieromartyr, name also spelt Riginos |
| Remigius of Reims | 533 | 1 October | Apostle to the Franks, Bishop of Reims, Hieroconfessor; a.k.a. Remy and Remi |
| Romanus the Melodist | 556 | 1 October | Church Father, Melodist, hymnographer, composer of thousands of hymns, name also spelled Romanos |
| Romuald | 1027 | 7 February | Abbot, Venerable, founder of the Camaldolese order |
| Rostislav I of Kiev | 1167 | 14 March | Right-Believing, Grand Prince of Kiev |
| Rufus of Thebes | 50–100 | 8 April / 4 January | Apostle of the Seventy, Bishop of Thebes, Hieromartyr |
| Ruth | 1100–1001 BC | Sunday of the Holy Forefathers | Righteous |
| Sabbas the Sanctified | 532 | 5 December | Hegumen, Venerable, name also spelled Savvas, Savva and Sava |
| Sabbas of Storozhi | 1406 | 3 December / 19 January / 10 August | Hegumen of Zvenigorod, Venerable, disciple of St. Sergius |
| Sabbatius of Solovki | 1435 | 27 September / 8 August | Wonderworker, Venerable; who founded the Solovki monastery with St. Zosimas |
| Saethryth | 601–700 | 7 January | Abbess, Venerable |
| Salome | 33–100 | 3 August / Sunday of the Holy Myrrhbearers | Myrrhbearer |
| Sampson the Hospitable | 0530 c. 530 | 27 June | Unmercenary Healer, Blessed, the Innkeeper |
| Samson | c. 1078 BC | Sunday of the Holy Forefathers | Judge, Righteous, the Strong Man, name also spelled Sampson |
| Samuel | 1012 BC | 20 August | Prophet, Judge |
| Sarah | Patriarchal Age | Sunday of the Holy Forefathers | Righteous, wife of Patriarch Abraham, previously known as Sarai |
| Sava I of Serbia | 1237 | 14 January | Equal-to-the-Apostles, Illuminator of the Serbs, Archbishop of Serbia, Hieroconfessor, Venerable Hieromonk |
| Sava II of Serbia | 1271 | 21 February | Archbishop of Serbia, Venerable Hieromonk, nephew of St. Sava |
| Sava II Branković | 1683 | 24 April | Metropolitan of Transylvania, Venerable Hieroconfessor; a.k.a. Sabbas Brancovici |
| Sava III of Serbia | 1316 | 26 July / 30 August | Archbishop of Serbia, Venerable |
| Scholastica | 543 | 10 February | Venerable; foundress of the Benedictine nuns |
| Sebastian of Esztergom | 1036 c. 1036 | 30 December | Archbishop of Esztergom, Venerable, Benedictine monk, native name Sebestyén |
| Sebastian of Jackson | 1940 | 30 November | Missionary, Venerable, native name Sevastijan Dabović |
| Sebastian of Rome | 295–296 | 18 December | Martyr |
| Selaphiel | N/A | 8 November | Archangel |
| Seraphim of Bogucharsk [ru; bg] | 1950 | 13 February | Archbishop of Bogucharsk, Venerable, Wonderworker of Sofia |
| Seraphim of Sarov | 1833 | 2 January | Venerable Confessor, Wonderworker |
| Serapion of Antioch | 211 | 18 October | Patriarch of Antioch, Venerable, name also spelled Seraphion |
| Serapion of Novgorod | 1516 | 16 March | Archbishop of Novgorod, Venerable, Wonderworker |
| Serapion the Sindonite | 356 | 7 April | Desert Father, Venerable; a.k.a. Serapion of Egypt |
| Serapion of Thmuis | 0360 c. 360 | 21 March | Desert Father, Bishop of Thmuis, Venerable; a.k.a. Serapion of Nitria and Serapion the Scholastic |
| Serapion of Vladimir | 1275 | 12 July | Bishop of Vladimir, Venerable, Blessed |
| Sergius I of Rome | 701 | 8 September | Patriarch of Rome, Venerable |
| Sergius of Radonezh | 1392 | 25 September | Hegumen of Radonezh, Venerable, Wonderworker of all Russia |
| Sergius of Valaam | 901–1500 | 28 June | Venerable, Wonderworker, co-founder of Valaam Monastery with St. Herman of Valaam |
| Seridus of Gaza | 0543 c. 543 | 13 August | Hegumen, Venerable, confidant of St. Barsanuphius of Gaza |
| Seth | 1142 AM | Sunday of the Holy Forefathers | Righteous, son of Forefather Adam |
| Shemaiah | c. 1000 BC – c. 901 BC | 8 January / Sunday of the Holy Forefathers | Prophet |
| Silas | 65–100 | 30 July / 4 January | Apostle of the Seventy, Bishop of Corinth, Hieromartyr |
| Silvanus of Thessalonica | 33–100 | 30 July / 4 January | Apostle of the Seventy, Bishop of Thessalonica, Hieromartyr |
| Silverius of Rome | 537 | 20 June | Patriarch of Rome, Venerable |
| Simeon Barsabae | 345 | 17 April | Bishop of Seleucia-Ctesiphon, Hieromartyr |
| Simeon of Jerusalem | 0107 c. 107 / 117 | 27 April / 4 January | Brother of the Lord, Apostle of the Seventy, Patriarch of Jerusalem, Hieromartyr; a.k.a. Simon of Clopas |
| Simeon Niger | 33–150 | 27 April / 4 January | Apostle of the Seventy, Prophet; a.k.a. Simeon of Antioch |
| Simeon of Trier | 1035 | 1 May | Venerable, Hermit |
| Simeon the God-receiver | 1–100 | 3 February | God-receiver, Righteous |
| Simeon the Holy Fool | 501–600 | 21 July | Fool for Christ, Venerable; a.k.a. Simeon Salos/Salus |
| Simeon the Monk | 1228 | 24 September | Grand Prince of Serbia, Right-believing, Venerable, more commonly known as Stefan the First-Crowned and Stefan Nemanjić |
| Simeon the Myrrh-Streaming | 1200 | 13 February | Grand Prince of Serbia, Venerable, the Myrrh-Streaming, regnal name Stefan Nemanja |
| Simeon Stylites the Elder | 459 | 1 September | Venerable, Stylite, the Elder |
| Simeon Stylites the Younger | 596 | 24 May | Venerable, Stylite, Hieromonk, the Younger |
| Simeon Stylites III | 401–451 | 3 July | Archimandrite, Venerable, Stylite, hermit, possibly a.k.a. Simeon of Aegea or Simeon of Cilicia |
| Simeon Stylites of Lesbos | 844 | 1 February | Venerable, Stylite, iconodule |
| Simon of Cyrene | 0100 c. 100 | 27 February | The man who helped carry Jesus' cross in Matthew 27:32 |
| Simon the Apostle | 0065 c. 65 | 10 May / 30 June | Apostle, Martyr, the Zealot |
| Simplicius of Rome | 483 | 10 March | Patriarch of Rome, Venerable; who fought against Monophysitism |
| Siricius of Rome | 399 | 26 November | Patriarch of Rome, Venerable |
| Sisoes the Great | 429 | 6 July | Desert Father, Venerable, the Great |
| Sixtus I | 0125 c. 125 | 3 April | Patriarch of Rome, Venerable Hieromartyr, name also spelled Xystus |
| Sixtus II | 258 | 10 August | Patriarch of Rome, Venerable Hieromartyr, name also spelled Xystus |
| Sixtus III | 440 | 28 March | Patriarch of Rome, Venerable, name also spelled Xystus |
| Slobodan Stojanović [sr] | 1992 | 27 July | New Child Martyr |
| Sofian Boghiu [ro] | 2002 | 16 September | Hegumen of St. Anthimos Monastery, Archimandrite, Hesychast, Venerable Confessor |
| Solomon | c. 932 BC | Sunday of the Holy Forefathers | Prophet, King of Israel, the Wise; who wrote the Books of Proverbs, Ecclesiastes and Song of Songs and wrote Psalms 71 (72) and 127 (128) |
| Solomonia | 167–160 BC | 1 August | Martyr, mother of the 7 Maccabean Martyrs |
| Sophia of Milan | 101–200 | 17 September | Virgin Martyr, mother of Saints Faith, Hope and Charity; a.k.a. Sophia of Rome |
| Sophia of Słuck | 1612 | 19 March | Righteous, Princess of Slutsk, native name Zofia Radziwiłł |
| Sophronius of Jerusalem | 638 | 11 March | Patriarch of Jerusalem, Venerable |
| Sophrony of Essex | 1993 | 11 July | Venerable, Athonite Archimandrite; a.k.a. Sophrony the Athonite and Sophrony Sakharov |
| Sosipater of Iconium | 33–150 | 28 April / 29 April / 10 November / 4 January | Apostle of the Seventy, Bishop of Iconium |
| Sosthenes | 33–150 | 8 December / 4 January | Apostle of the Seventy, Bishop of Caesarea |
| Soter | 174 | 22 April | Patriarch of Rome, Venerable Hieromartyr |
| Soteris | 304 | 10 February | Virgin Martyr |
| Spyridon of Tremithus | 348 | 12 December / Cheesefare Saturday | Desert Father, Bishop of Tremithus, Wonderworker |
| Stachys the Apostle | 0054 c. 54 | 31 October / 4 January | Apostle of the Seventy, Bishop of Byzantium |
| Stephen the Protomartyr | 33–36 | 27 December / 2 August / 15 September / 4 January | Apostle of the Seventy, Archdeacon, Protomartyr, Hieromartyr, one of the seven Deacons |
| Stephen I of Rome | 257 | 2 August | Patriarch of Rome, Venerable, Hieromartyr |
| Stephen of Hungary | 1038 | 16 August | King of Hungary |
| Stephen of Perm | 1396 | 26 April | Apostle of the Permians, Enlightener, Bishop of Perm |
| Stephen of Piperi | 1697 | 20 May | Hegumen of Morača Monastery, Venerable |
| Stephen the Great | 1504 | 2 July | Right-Believing, Prince of Moldavia; regnal name Stephen III |
| Stylianos of Paphlagonia | 401–621 | 26 November | Venerable, the Hermit; a.k.a. Stylianus and Stylian |
| Swithun of Winchester | 862 | 2 July | Bishop of Winchester, Venerable |
| Sylvester I of Rome | 335 | 2 January | Patriarch of Rome, Venerable |
| Symmachus of Rome | 514 | 19 July | Patriarch of Rome, Venerable |
| Symeon the Metaphrast | 0960 c. 960 – c. 1000 | 9 November | Church Father, Venerable, author of the 10-volume medieval Greek menologion |
| Symeon the New Theologian | 1022 | 12 March / 12 October | Theologian, Church Father, Venerable, the New |
| Symeon the Studite | 986 / 987 | 12 March | Venerable, spiritual father of St. Symeon the New Theologian; a.k.a. Symeon the Pious and Symeon the Devout, |
| Tarasius of Constantinople | 806 | 25 February | Ecumenical Patriarch of Constantinople, Venerable Hieroconfessor, name also spelled Tarasios |
| Tatiana of Russia | 1918 | 17 July | Passion bearer; one of the Romanov Martyrs |
| Telesphorus of Rome | 0138 c. 138 | 22 February | Patriarch of Rome, Venerable Hieromartyr |
| Tertius of Iconium | 33–100 | 30 October / 10 November / 4 January | Apostle of the Seventy, Bishop of Iconium, Hieromartyr |
| Thaddeus of Edessa | 44 | 21 August / 4 January | Apostle of the Seventy; a.k.a. Addai |
| Theodora of Sihla | 1665–1770 | 7 August | Venerable |
| Theodora the Empress | 500–548 | 14 November | Empress of the Byzantine Empire |
| Theodore I of Alexandria | 609 | 3 December | Patriarch of Alexandria, Hieromartyr |
| Theodore of Amasea | 306 | 17 February | Great Martyr, the Recruit, Military Saint; a.k.a. Theodore Tyron/Tiron |
| Theodore of Heraclea | 319 | 8 February | Great Martyr, the General, Military Saint; a.k.a. Theodore Stratelates |
| Theodore of Komogovina | 1788 | First Saturday of Great Lent | Venerable Martyr |
| Theodore of Marseille | 594 | 26 December | Bishop of Marseille, the Sacrist |
| Theodore of Octodurum | 301–400 | 17 August | Bishop of Octodurum and Valais; a.k.a. Theodolus, Theodulus and Yoder/Joder |
| Theodore of Pavia | 778 | 20 May | Bishop of Pavia |
| Theodore, Philippa and companions | 220 | 19 April | Martyrs |
| Theodore of Sykeon | 613 | 22 April | Bishop of Anastasiopolis; a.k.a. Theodore the Sykeote |
| Theodore of Tabennese | 368 | 16 May | Venerable, the Sanctified, disciple of St. Pachomius |
| Theodore of Tarsus | 690 | 19 September | Archbishop of Canterbury, Venerable |
| Theodore of Tomsk | 1864 | 20 January / 22 June | Righteous, Wonderworker, starets; who is rumoured to be Tsar Alexander I; native name Fyodor Kuzmich |
| Theodore of Vienne | 575 | 29 October | Abbot, Hieromonk; a.k.a. Theudurius, Theudar, Cherf and Chef |
| Theodore the Black | 1299 | 19 September | Right-Believing, Prince of Smolensk and Yaroslav, Venerable |
| Theodore the Presbyter and Pausilippus | 130 | 15 April | Martyrs |
| Theodore the Studite | 826 | 11 November | Church Father, Hegumen, Venerable Confessor |
| Theodore the Varangian and his son John | 978–988 | 12 July | Martyrs |
| Theodore the Venerable | 820 | 27 December | Venerable, iconodule |
| Theodorus the Branded | 842 | 27 December | Venerable Confessor, the Branded, brother of St. Theophanes of Nicaea |
| Theodosia of Constantinople | 729 | 29 May | Virgin Martyr, iconodule |
| Theodosius of Kiev | 1074 | 3 May / 14 August / 2 September / 28 September | Venerable, father of Russian monasticism |
| Theodosius of Manyava | 1629 | 24 June | Hegumen, Venerable of Manyava Skete |
| Theodota of Philippi | 318 | 29 September | Martyr |
| Theognostus of Kiev | 1353 | 14 March | Metropolitan of Kiev and all Rus', Venerable |
| Theophan the Recluse | 1894 | 6 January or 10 January | Church Father, Bishop of Tambov and Shatsk, the Recluse, well known for his writings on the spiritual life |
| Theophanes of Nicaea | 845 | 11 October | Bishop of Nicaea, brother of St. Theodorus the Branded |
| Theophanes the Confessor | 810–819 | 12 March | Venerable Confessor, iconodule |
| Theophilus of Antioch | 0183 c. 183 | 6 December | Church Father, Patriarch of Antioch, Venerable |
| Theophylact of Bulgaria | 1126 | 31 December | Archbishop of Ohrid and Bulgaria, Blessed; a.k.a. Theophylact of Ohrid |
| Theotimos of Tomi | 410 | 20 April | Bishop of Tomi |
| Thomas the Apostle | 72 | 6 October / 30 June | Apostle, Martyr |
| Thyrsus | 251 | 14 December | Martyr; a.k.a.Thyrse |
| Tiburtius | 0286 c. 286 | 11 August | Martyr |
| Tikhon of Kaluga | 1492 | 16 June | Venerable; who founded the Monastery of the Dormition of the Theotokos in Kaluga |
| Tikhon of Moscow | 1925 | 7 April | Patriarch of Moscow, Apostle of America, Venerable Hieroconfessor |
| Tikhon of Zadonsk | 1783 | 13 August | Bishop of Voronezh, Wonderworker of Zadonsk, Venerable |
| Timon the Deacon | 33–100 | 30 December / 28 July / 4 January | Apostle of the Seventy, one of the seven Deacons, Bishop of Bosra, Hieromartyr |
| Timothy I of Alexandria | 384 | 13 February | Patriarch of Alexandria, Venerable |
| Timothy of Ephesus | 93 | 22 January / 4 January | Apostle of the Seventy, Bishop of Ephesus, Hieromartyr |
| Timothy of Prusa | 362 | 10 June | Bishop of Prusa, Venerable Hieromartyr |
| Tiridates III of Armenia | 0330 c. 330 | 29 November | King of Armenia; who made the Kingdom of Armenia the first nation in history to make Christianity the official religion |
| Titus | 96 / 107 | 25 August / 4 January | Apostle of the Seventy, Archbishop of Crete |
| Tobias of Jerusalem | 0117 c. 117 | 17 December | Patriarch of Jerusalem, Venerable |
| Trophimus | 33–100 | 15 April / 4 January | Apostle of the Seventy, disciple of St. Paul |
| Trophimus of Arles | 0280 c. 280 | 29 December | Bishop of Arles, Venerable |
| Trophimus, Sabbatius, and Dorymedon | 0278 c. 278 | 19 September | Martyrs |
| Tryphon of Campsada | 250 | 1 February | Great Martyr, Unmercenary Healer, Wonderworker |
| Tryphon of Pechenga | 1583 | 15 December | Enlightener of the Lapps, Hegumen of Pechenga Monastery, Venerable |
| Tychicus | 33–150 | 8 December / 4 January | Apostle of the Seventy, Bishop of Caesarea |
| Ulrich of Augsburg | 973 | 4 July | Bishop of Augsburg, Venerable |
| Urban of Langres | 0390 c. 390 | 2 April | Bishop of Langres, Venerable |
| Urban of Macedonia | 33–100 | 31 October / 4 January | Apostle of the Seventy, Apostle of Macedonia, Bishop of Macedonia, Hieromartyr |
| Urban I of Rome | 230 | 25 May | Patriarch of Rome, Venerable |
| Uriel | N/A | 8 November | Archangel |
| Ursula of Cologne | 0383 c. 383 | 21 October | Virgin Martyr |
| Valentine of Passau | 0470 c. 470 | 7 January | Abbot, Venerable |
| Valentine of Terni | 269 | 14 February / 6 July / 30 July | Bishop of Terni, Hieromartyr; eponym of St. Valentine's Day |
| Varnava the New Confessor | 1964 | 12 November | Bishop of Hvosno, New Hieroconfessor, native name Varnava Nastić |
| Venantius Fortunatus | 600 / 609 | 14 December | Church Father, Bishop of Poitiers, Venerable |
| Victor I of Rome | 198 | 28 July | Patriarch of Rome, Venerable Hieromartyr |
| Victor of Capua | 554 | 17 October | Church Father, Bishop of Capua |
| Victor of Damascus | 0170 c. 170 | 11 November | Martyr, Military Saint |
| Victorinus of Pettau | 303 / 304 | 2 November | Church Father, Bishop of Pettau, Venerable Hieromartyr |
| Vigilius of Trent | 405 | 26 June | Bishop of Trent, Venerable |
| Vincent of Lérins | 0445 c. 445 | 24 May | Church Father, Bishop of Lérins |
| Vincent of Saragossa | 304 | 11 November | Protomartyr of Spain, Hieromartyr, Deacon; a.k.a. Vincent of Spain |
| Vitalian of Capua | 680–700 | 16 July | Bishop of Capua, Venerable; a.k.a. Vitalianus |
| Vitalian of Osimo | 776 | 16 July | Bishop of Osimo, Venerable |
| Vitalian of Rome | 672 | 23 July | Patriarch of Rome, Venerable |
| Vitus of Sicily | 303 | 15 June | Martyr; whose companions were Modestus and Crescentia; a.k.a. Guy and Guido |
| Vladimir the Great | 1015 | 15 July | Equal-to-the-Apostles, Enlightener of Rus', Grand Prince of Kiev |
| Vladimir of Novgorod | 1052 | 4 October | Right-believing, Wonderworker, Prince of Novgorod, native name Vladimir Yaroslavich |
| Vukašin of Klepci | 1943 | 16 May | New Martyr |
| Wenceslaus I of Bohemia | 935 | 28 September | Duke of Bohemia, Martyr; patron saint of Czechia |
| Werburgh | 699 | 3 February | Venerable, Anglo-Saxon princess |
| Wilfrid of Ripon | 709 | 12 October | Bishop of York |
| Wilfrid the Younger | 744 | 29 April | Venerable, disciple of St. John of Beverley |
| Wilfrida of Wilton | 0988 c. 988 | 13 September | Abbess, mother of St. Edith of Wilton |
| William of Dijon | 1031 | 1 January | Venerable, founder of the Abbey of Fruttuaria; a.k.a. William of Volpiano, William of Saint-Benignus and William of Fécamp |
| William of Gellone | 812 | 28 May | Venerable; who founded Saint-Guilhem-le-Désert Abbey |
| William of Peñacorada | 1042 | 20 March | Venerable; who founded the Priory of Saint William of Peñacorada [es] |
| Willibrord | 739 | 7 November | Apostle to the Frisians |
| Winibald | 761 | 18 December | Bishop of Eichstätt, Abbot of Heidenheim, Venerable |
| Winifred | 601–700 | 3 November | Virgin Martyr; a.k.a. Winefride |
| Wolfeius | 1001–1100 | 9 December | Hermit |
| Wolfgang of Regensburg | 994 | 31 October | Bishop of Regensburg, the Almoner |
| Xenia of Saint Petersburg | 1803 | 24 January | Blessed, Fool for Christ |
| Xenia of Rome | 401–500 | 24 January | Venerable, Righteous, Deaconess |
| Xenophon of Robika | 1262 | 26 January | Venerable |
| Yaropolk Izyaslavich | 1087 | 22 November | King of Rus, Blessed, great-grandson of St. Vladimir |
| Yaroslav the Wise | 1054 | 20 February | Equal-to-the-Apostles, Grand Prince of Kiev |
| Ymar | 830 | 12 November | Venerable Martyr |
| Yrchard | 401–500 | 24 August | Bishop, name also spelled Irchard, Yarchard, Merchard, Erchard and Erthad |
| Ysarn | 1048 | 24 September | Abbot of the Monastery of St. Victor, Venerable, name also spelled Isarn |
| Ywi | 690 | 8 October | Venerable, Deacon |
| Zachariah the Recluse | 301–400 | 24 March | Desert Father, Venerable, the Recluse |
| Zachary of Rome | 752 | 15 March | Patriarch of Rome, Venerable |
| Zachary of Vienne | 0106 c. 106 | 26 May | Bishop of Vienne, Hieromartyr |
| Zama of Bologna | 0268 c. 268 | 24 January | Bishop of Bologna |
| Zebennus | 201–300 | 13 November | Bishop of Eleutheropolis, Hieromartyr |
| Zechariah | c. 600 BC – c. 501 BC | 8 February | Prophet, the Sickle-Seer; who wrote the Book of Zechariah; a.k.a. Zacharias |
| Zechariah, father of John the Baptist | 0010 c. 10 – c. 50 | 5 September | Prophet, High Priest, Hieromartyr |
| Zechariah of Lyons | 202 | 28 June | Bishop of Lyons, Venerable |
| Zenaida and Philonella | 0100 c. 100 | 11 October | Holy Unmercenaries, cousins of St. Paul |
| Zenas the Lawyer | 33–100 | 27 September / 4 January | Apostle of the Seventy, Bishop of Lydda |
| Zeno of Gaza | 0362 c. 362 | 21 September | Desert Father, Venerable Martyr, brother of Saints Eusebius and Nestabus |
| Zeno the Hermit | 0416 c. 416 | 30 January | Venerable, Hermit, disciple of St. Basil the Great; a.k.a. Zeno of Antioch |
| Zeno the Prophet | 0451 c. 451 | 19 June | Desert Father, Venerable, Wonderworker |
| Zeno of Verona | 371 | 12 April | Church Father, Bishop of Verona, Hieromartyr; who opposed Arianism |
| Zenobius of Florence | 417 | 25 May | Bishop of Florence |
| Zephaniah | c. 641 BC – c. 520 BC | 2 December | Prophet; who wrote the Book of Zephaniah; a.k.a. Sophanias |
| Zephyrinus of Rome | 217 | 26 August | Church Father, Patriarch of Rome, Venerable Hieromartyr |
| Zoe of Rome | 286 | 18 December | Martyr |
| Zoilus of Córdoba | 0301 c. 301 | 27 June | Martyr |
| Zosimas of Palestine | 0560 c. 560 | 4 April | Venerable |
| Zosimas of Solovki | 1478 | 17 April / 8 August | Hegumen, Venerable; who founded the Solovki Monastery with St. Sabbatius |
| Zosimus of Cilicia | 0284 c. 284 – c. 350 | 4 January | Venerable Confessor, the Hermit |
| Zosimus of Spoleto | 110 | 19 June | Martyr |
| Zosimus of Syracuse | 662 | 21 January / 30 March | Bishop of Syracuse, Abbot, Venerable |
| Zosimus of Rome | 418 | 26 December | Patriarch of Rome, Venerable |
| Zoticus of Comana | 204 | 21 July | Bishop of Comana, Hieromartyr |