# List of religious institutes

The following is a list of current Catholic religious institutes. Most are Latin Catholic; however, Eastern Catholic institutes are also included.
The list given here includes not only examples of pontifical right institutes but also some that are only of diocesan right. It includes even some associations formed with a view to becoming religious institutes but not yet canonically erected even on the diocesan level.
The list does not distinguish between institutes that historically would be classified either as "orders" or as "congregations".
Institutes are listed alphabetically by their common names, not their official ones. For example, the Jesuits, officially called the Society of Jesus, would be listed under 'J' rather than under 'S.' If an institute's official name is used more often than a nickname, it will be listed as such.
* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z
* General references
* See also
* External links

## List

| Name | Post- nominals | Founder | Family | Year founded |
| Adorers of the Blood of Christ | A.S.C. | St. Maria De Mattias | Augustinian | 1834 |
| Adrian Dominican Sisters (Congregation of the Most Holy Rosary) | O.P. | Mother Camilla Madden | Dominican | 1880 |
| Affiliated Christian Brothers | A.F.S.C. | | | |
| Association of Pauline Cooperators | | | Pauline | 1918 |
| Agnesian Sisters (Congregation of Sisters of St. Agnes) | C.S.A. | Fr. Kaspar Rehrl | | 1858 |
| Alagad ni Maria (Disciples of Mary) | A.M. | | | |
| Albertine Brothers | C.F.A.P.U. | St. Albert Chmielowski | Franciscan | 1888 |
| Albertine Sisters | C.S.A.P.U. | St. Albert Chmielowski | Franciscan | 1891 |
| Alexian Brothers | C.F.A. | Fr. Dominicus Brock | Augustinian | 1469 |
| Alliance of the Hearts of Jesus and Mary | A.S.M. | | | |
| American-Cassinese Benedictine Congregation | O.S.B. | Abbot Boniface Wimmer | Benedictine | 1855 |
| Amigonian Friars | T.C. | José María Amigó y Ferrer | Capuchin | 1889 |
| Angelic Sisters of St. Paul | A.S.S.P. | St. Anthony Maria Zaccaria | Barnabite | 1535 |
| Antonian Order of Saint Ormizda of the Chaldeans | O.A.O.C. | | Chaldean Catholic | 1808 |
| Antonin Maronite Order | O.A.M. | | Maronites | 1700 |
| Apostles of Jesus Missionaries | A.J | Founded by Bishop Sixtus Mazzoldi, MCCJ and Rev. John Marengoni, MCCJ in Moroto, Uganda, East Africa, on August 22, 1968 | Apostles of Jesus | 1968 |
| Apostles of the Sacred Heart of Jesus | A.S.C.J. | Blessed Clelia Merloni | | 1894 |
| Ar-Rouhbanyat Al-Marounyat Liltoubawyat Mariam Al-Azra | O.M.M. | | | |
| Armenian Sisters of the Immaculate Conception | R.I.C. | Archbishop Andon Hassounian | | 1847 |
| Arrouhbaniat Albassiliat Almoukhalissiat | B.S. | | | |
| Assisi Sisters of Mary Immaculate | A.S.M.I. | | Franciscan | 1949 |
| Assumptionists (Augustinians of the Assumption) | A.A. | Fr. Emmanuel d'Alzon | Augustinian | 1845 |
| Augustinian Missionary Sisters | A.M.S. | | Augustinian | |
| Augustinian Sisters, Servants of Jesus and Mary | A.S.J.M. | Mother Maria Teresa Spinelli | Augustinian | 1827 |
| Austrian Cistercian Congregation | O.S.B. | | Benedictine | |
| Austrian Congregation of Canons Regular | | | Augustinian | |
| Austrian Congregation | O.S.B. | Pope Urban VIII | Benedictine | 1625 |
| B |||||
| Basilian Chouerite Order of Saint John the Baptist | B.C. | Neophytos Nasri | Melkite Greek Catholic | 1696 |
| Bavarian Congregation | O.S.B. | Pope Pius IX | Benedictine | 1684 |
| Benedictine Oblates of St Scholastica | O.S.B. | | Benedictine | 1984 |
| Benedictine Sisters of Divine Providence | B.D.P. | | Benedictine | |
| Benedictine Sisters of Our Lady of Grace and Compassion | O.S.B. | | Benedictine | |
| Benedictine Sisters of Perpetual Adoration | O.S.B; | Mother Mary Anselma Felber | Benedictine | 1874 |
| Benedictine Sisters of St. Lioba | O.S.B. | | Benedictine | |
| Benedictines of Mary, Queen of Apostles | O.S.F. | Priestly Fraternity of St. Peter | Benedictine | 1995 |
| Bernardine Cistercians of Esquermes | | Mother Hippolyte Lecouvreur | Benedictine | 1827 |
| Bernardine Sisters of St. Francis | | Mother Veronica Grzedowska | Franciscan | 1894 |
| Bethlehemite Brothers | O.F.B. | St. Peter of Saint Joseph de Betancur | | 1653 (restored 1984) |
| Beuronese Congregation | O.S.B. | Fr. Maurus WolterFr. Placidus Wolter | Benedictine | 1863 |
| Bon Secours Sisters | C.B.S. | Archbishop Hyacinthe-Louis de Quélen | | 1824 |
| Brazilian Cistercian Congregation | | | Benedictine | 1961 |
| Brazilian Congregation | O.S.B. | | Benedictine | 1827 |
| Brigidine Sisters | C.S.B. | Daniel Delany | | 1807 |
| Brigittine Monks | O.Ss.S. | | | |
| Brothers and Sisters of Penance of St. Francis | | | Franciscan | 1996 |
| Brothers Hospitallers of St. John of God | O.H. | St. John of God | | 1572 |
| Brothers of Charity | F.C. | Canon Petrus Joseph Triest | Vincentians | 1807 |
| Brothers of Christian Instruction (De la Mennais Brothers, FIC Brothers) | F.I.C. | Gabriel Deshayes & Jean-Marie de Lamennais | | 1819 |
| Brothers of Christian Instruction of St Gabriel (Gabrielite Brothers) | S.G.F.S.G. | St. Louis de Montfort & Fr. Gabriel Deshayes | Montfortian | 1711 |
| Brothers of Divine Providence | F.D.P. | | | |
| Brothers of Mercy of Our Lady of Perpetual Help | F.M.M. | Canon J. B. Cornelius Scheppers | | 1839 |
| Brothers of Our Lady Mother of Mercy | C.M.M. | | | |
| Brothers of Our Lady of the Holy Rosary | F.S.R. | | | |
| Brothers of St. Charles Lwanga (Bannakaroli Brothers) | B.S.C.L | Bishop Henri Streicher, M.Afr. | | 1927 |
| Brothers of the Assumption | | | Augustinian | |
| Brothers of the Holy Family of Belley | F.S.F. | | | |
| Brothers of the Holy Infancy | | Bishop John Timon | | 1853 |
| Brothers of the Immaculate Conception of Maastricht | F.I.C. | Fr. Bernard Hoecken, Fr. Louis Rutten | | 1867 |
| Brothers of the Sacred Heart | S.C. | Fr. André Coindre | | 1821 |
| Byzantine Discalced Carmelites of Lebanon | | Archbishop Philip Nabaa | Eastern Catholic, Carmelite | 1962 |
| C |||||
| Camaldolese Hermits of the Congregation of Monte Corona | Er. Cam. | Fr. Paul Giustiniani | Benedictine | 1525 |
| Camaldolese | E.C. | St. Romuald | Benedictine | 1025 |
| Camaldolese Congregation of the Order of St. Benedict | O.S.B. Cam. | | Benedictine | |
| Camillian Fathers (Clerics Regular, Ministers to the Sick) | M.I.O.S. Cam. | St. Camillus de Lellis | Camillian | 1582 |
| Canonesses Regular of St. Augustine | C.R.O.S.A. | | Augustinians | |
| Canonesses Regular of the Holy Sepulchre | C.R.S.S. | | | |
| Canonesses of St. Augustine of the Mercy of Jesus | O.S.A. | | Augustinian | 13th century |
| Canons Regular of St. John Cantius | S.J.C. | Fr. C. Frank Phillips, C.R. | Augustinian | 1998 |
| Canons Regular of St. Victor | | | Augustinian | 1968 |
| Canons Regular of the Hospitalary Congregation of Great St. Bernard | | | Augustinian | 11th century |
| Canons Regular of the Immaculate Conception | C.R.I.C. | Adrien Gréa | Augustinian | 1871 |
| Canons Regular of the Lateran | C.R.L. | St. Martin of Tours | Augustinian | 4th century |
| Canons Regular of the New Jerusalem | C.R.N.J. | Bishop Raymond Leo BurkeDom Daniel Augustine Oppenheimer | Augustinian | 2002 |
| Crosiers (Canons Regular of the Order of the Holy Cross) | O.S.C. | Theodorus de Cellis | | Late 12th century |
| Canons Regular of the Swiss Congregation of Saint-Maurice of Agaune | | Holy Roman Emperor Sigismund | Augustinian | 515 |
| Canons of Jesus the Lord (Russia) | C.J.D. | | | |
| Canossian Fathers (Canossian Sons of Charity) | F.d.C.C. | St. Magdalene of Canossa, Fr. Francesco Luzzi | Canossian | 1831 |
| Canossian Sisters (Canossian Daughters of Charity, Servants of the Poor) | F.D.D.C. | St. Magdalene of Canossa | Canossian | 1808 |
| Capuchin Poor Clares | O.S.C. Cap.P.C. Cap. | Ven. Maria Laurentia Longo | Franciscan | 1538 |
| Capuchin Sisters of Nazareth | C.N. | | Franciscan | |
| Carmelite Daughters of the Divine Heart of Jesus | D.J.C. | Mother Anna Maria Tauscher | Carmelites | 1891 |
| Carmelite Sisters Of St. Teresa | C.S.S.T. | | Carmelite | 1887 |
| Carmelite Sisters for the Aged and Infirm | O. Carm. | Mother Mary Angeline Teresa McCrory | Carmelite | 1929 |
| Carmelite Sisters of Charity (Vedruna), India | C.C.V. | | Carmelite | 1826 |
| Carmelite Sisters of Charity | C.C.V. or C. a Ch. | Joaquina Vedruna de Mas | Carmelite | 1826 |
| Carmelite Sisters of St. Therese | C.S.T. | | Carmelite | |
| Carmelite Sisters of the Divine Heart of Jesus | D.C.J. | | Carmelite | |
| Carmelite Sisters of the Most Sacred Heart of Los Angeles | | Ven. Maria Luisa Josefa | Carmelite | 1904 |
| Carmelite Sisters of the Sacred Hearts | | | Carmelite | 1987 |
| Carmelites of Mary Immaculate | C.M.I. | Fr. Palackal ThomaFr. Porukara Thoma KathanarFr. Kuriakose Elias Chavara | Carmelite | 1831 |
| Carmelites of St. Elijah | C.S.E. | | Carmelite | 1986 |
| Carmelites (Order of the Brothers of the Blessed Virgin Mary of Mount Carmel) | O. Carm. | St. Berthold of Calabria | Carmelite | 12th century |
| Carthusian Order (Order of St. Bruno) | O. Cart. | St. Bruno of Cologne | Carthusian | 1084 |
| Casamari Cistercian Congregation | | | Benedictine | 1929 |
| Castilian Cistercian Congregation | | | Benedictine | 1425 |
| Catechist Sisters of St. Ann (India) | C.S.A. | | | |
| Catholic Foreign Mission Society of America see Maryknoll | | | | |
| Christian Doctrine Fathers (Doctrinaries) | D.C. | Blessed Fr. César de Bus | | 1592 |
| CICM Missionaries (Congregation of the Immaculate Heart of Mary) | C.I.C.M. | Fr. Theophiel Verbist | | 1862 |
| Cistercian Congregation of Mary Mediatrix | | | Benedictine | 1846 |
| Cistercian Congregation of Mary, Queen of the World | | | Benedictine | 1953 |
| Cistercian Congregation of St. Bernard in Italy | | | Benedictine | 1497 |
| Cistercian Congregation of the Crown of Aragon | | | Benedictine | 1616 |
| Cistercian Congregation of the Holy Family | | | Benedictine | 1964 |
| Cistercian Congregation of the Immaculate Conception | | | Benedictine | 1867 |
| Cistercian Congregation of the Immaculate Heart of Mary | | | Benedictine | 1923 |
| Cistercian Order of the Holy Cross | O.C.C.O. | | Benedictine | |
| Cistercians of the Common Observance | S.O.Cist. | | | |
| Cistercian Order | O.Cist. | St. Robert of Molesme | Benedictine | 1098 |
| Claretian Sisters (Religious of Mary Immaculate Claretian Missionary Sisters) | C.S. | St. Anthony Mary Claret | Claretian | 1855 |
| Claretians (Congregation of Missionaries, Sons of the Immaculate Heart of the Blessed Virgin Mary) | C.M.F. | St. Anthony Mary Claret | Claretian | 1849 |
| Clarissan Missionaries of the Blessed Sacrament, India | C.S.B.S. | | | |
| Clarist Franciscan Missionaries of the Most Blessed Sacrament (India) | C.F.M.S.S. | | Franciscan | |
| Clerics Regular Minor (Adorno Fathers) | C.R.M. | St. Francis Caracciolo | Augustinian | 1558 |
| Clerics Regular of St. Paul | C.R.S.P. | St. Anthony Maria Zaccaria | Barnabite | 1530 |
| Colettine Poor Clares | P.C.C. | St. Colette of Corbie | Franciscans | 1211 |
| Comboni Missionaries | M.C.C.I. | St. Daniel Comboni | | 1867 |
| Community of Betania | | Maria Esperanza | | 1979 |
| Community of Jesus | | Cay Andersen; Judy Sorensen | Benedictine | 1968 |
| Community of St. John | C.S.J. | Fr. Marie-Dominique Philippe | | 1975 |
| Company of Mary Our Lady | O.D.N. | St. Jeanne de Lestonnac | | 1607 |
| Company of Our Lady of the Blessed Sacrament | F.C.S. | | | |
| Congregartion of the Sons of the Immaculate Conception, India | C.F.I.C. | | | |
| Congregation of the Disciples of the Lord | C.D.D. | Bishop Celso Costantini | | 1931 |
| Congregation of Carmelite Religious | C.C.R. | | | |
| Congregation of Christian Brothers (Irish Christian Brothers) | C.F.C. | Blessed Edmund Ignatius Rice | | 1802 |
| Congregation of Christian Retreat | | Fr. Antoine-Sylvestre Receveur | | 1789 |
| Congregation of Christian Workers of St. Joseph Calasanz | C.Op. | | | 1889 |
| Congregation of Clerics Regular (Theatines) | C.R. | St. Cajetan | | 1524 |
| Congregation of Divine Providence (Germany) | | Bishop Wilhelm Emmanuel von Ketteler | Divine Providence | 1851 |
| Congregation of Divine Providence (Sisters of Divine Providence) | C.D.P. | Blessed Jean-Martin Moye | Divine Providence | 1827 |
| Congregation of Franciscans of the Immaculate Conception | C.F.I.C. | | | |
| Congregation of Holy Cross (Holy Cross Fathers) | C.S.C. | Blessed Basil Moreau | Holy Cross | 1837 |
| Congregation of Holy Family, India | C.H.F. | Blessed Mariam Thresia | | 1914 |
| Congregation of Jesus and Mary (Eudists) | C.I.M.C.J.M. | Fr. John Eudes | | 1643 |
| Congregation of Jesus, India | C.J. | | | |
| Congregation of Missionaries of the Holy Family | M.S.F. | | | |
| Congregation of Missionary Servants of the Most Holy Trinity | M.SS.S.T. | | | |
| Congregation of the Missionary Sisters of Saint Charles Borromeo (Scalabrinian Sisters) | C.S. | Blessed Giovanni Battista Scalabrini | Scalabrinian | 1895 |
| Congregation of Monks Studitas of Ukraine | M.S.U. | | | |
| Congregation of Mary Immaculate Queen | C.M.R.I | Francis Schuckardt | | 1967 |
| Congregation of the Mother of Carmel | C.M.C. | St. Kuriakose Elias Chavara | Carmelite | 1866 |
| Congregation of Mother of Divine Love | C.M.D.A. | | | |
| Congregation of Nazareth Sisters, India | C.N.S. | | | |
| Congregation of Notre Dame of Montreal | C.N.D. | St. Marguerite Bourgeoys | | 1653 |
| Congregation of Our Lady of Calvary | | François Leclerc du Tremblay, OFM Cap | Benedictines | 1617 |
| Congregation of Our Lady of Pity | C.L.P. | | | |
| Congregation of Our Lady of Sion | N.D.S. | Fr. Marie Theodor RatisbonneFr. Marie-Alphonse Ratisbonne | | 1852 |
| Congregation of Our Lady of the Missions | R.N.D.M. | Mother Adèle Euphrasie Barbier | Augustinian | 1861 |
| Congregation of St. Thérèse of Lisieux | C.S.T. | Metropolitan Mar Augustine Kandathil | | 19311945 |
| Congregation of Samaritan Sisters, India | C.S.S. | | | |
| Congregation of the School Sisters of Notre Dame | | Peter Fourier, Alexia le Clerc, Gabriel Schneider | | |
| Congregation of Servants of Holy Infancy Jesus | O.S.F. | | | |
| Congregation of Sons of Mary Immaculate (Chavagne Fathers) | F.M.I. | | | |
| Congregation of Sons of Mary Immaculate | F.S.M.I. | | | |
| Congregation of St. Basil | C.S.B. | Fr. Joseph Lapierre | Basilian | 1822 |
| Congregation of St. John | F.J. | | | |
| Congregation of St. Michael the Archangel | C.S.M.A. | | | |
| Congregation of Windesheim | | Fr. Geert GrooteFlorens Radewyns | Augustinian | 1386 |
| Congregation of the Annunciation | B.M.V. | Abbot Columba Marmion | Benedictine | 1920 |
| Congregation of the Brothers of the Blessed Sacrament | CFSsS | Václav Klement Petr | | 1888 |
| Congregation of the Blessed Sacrament | S.S.S. | St. Peter Julian Eymard | Eymardian | 1659 |
| Congregation of the Clerics Regular of Saint Augustine | C.C.R.S.A. | | | |
| Congregation of the Companions of St. Angela | C.S.A. | | | |
| Congregation of the Divine Spirit | C.D.S. | Archbishop John Mark Gannon | | 1956 |
| Congregation of the Holy Spirit (Holy Ghost Fathers, Spiritans) | C.S.Sp. | Fr. Claude Poullart des Places | | 1703 |
| Congregation of the Immaculate Congregation, India | C.I.C. | | | |
| Congregation of the Lebanese Maronite Missionaries | M.L. | | | 1865 |
| Congregation of the Mother of the Redeemer (Vietnam) | C.R.M. | Fr. Dominic Maria Trần Đình Thủ | | 1952 |
| Congregation of the Oblates to Divine Love | | Mother Margherita Diomira Crispi | | |
| Congregation of the Rosarians, India | C.R. | | | 1928 |
| Congregation of the Sacred Hearts of Jesus and Mary | S.S.C.C. | | | |
| Congregation of the Sacred Hearts of Jesus and Mary | SS.CC. | Fr. Pierre Coudrin | | 1800 |
| Congregation of the Sisters of Charity, India | C.S.C. | | | |
| Congregation of the Sisters of Christian Schools | S.S.C. | | | |
| Congregation of the Sisters of Mercy | R.S.M. | | Sisters of Mercy | 1991 |
| Congregation of the Sisters of Nazareth | C.S.N. | Victoire Larmenier | | 1857 |
| Congregation of the Sisters of Nazareth, India | C.S.N. | | | |
| Congregation of the Sisters of Our Lady of Mercy | O.L.M. | Mother Teresa Eva Potocka | | 1862 |
| Congregation of the Sisters of Our Lady of Mercy (Divine Mercy Sisters) | O.L.M. | Mother Teresa Eva Potocka | | 1862 |
| Congregation of the Sisters of St. Aloysius, India | O.S.L. | | | |
| Congregation of the Sisters of St. Elizabeth, India | C.S.S.E. | | | |
| Congregation of the Sisters of St. Felix of Cantalice (Felician Sisters) | C.S.S.F. | Sophia Truszkowska | | 1855 |
| Congregation of the Sisters of the Blessed Sacrament | | Marie Magdaléna Šebestová | | 1887 |
| Congregation of the Sisters of the Blessed Sacrament and Our Lady | C.B.S. | | | |
| Congregation of the Sisters of the Resurrection | C.R. | Celine BorzeckaHedwig Borzecka | | 1891 |
| Congregazione dei Preti della Dottrina Cristiana (Concezionisti) | C.F.I.C. | | | |
| Congrégation des Soeurs de Saint-Martin | S.M. | | | |
| Congrégation du Sacré-Coeur (Pères de Timon David) | S.C.J. | | | |
| Cono-Sur Congregation | O.S.B. | | Benedictines | 1976 |
| Consolata Missionaries | I.M.C. | Giuseppe Allamano | | 1901 |
| Cordi Marian Sisters | M.C.M. | | | |
| Crusade of the Holy Spirit | C.H.S. | | | |
| D |||||
| Daughters of Charity of the Most Precious Blood, India | D.C.P.B. | | | |
| Daughters of Charity of the Sacred Heart of Jesus | F.C.S.C.J. | | | |
| Daughters of Divine Charity | F.D.C. | Mother Franziska Lechner | | 1868 |
| Daughters of Divine Love | D.D.L. | Bishop Godfrey Mary Paul Okoye | | 1969 |
| Daughters of Divine Providence | F.D.P. | | | |
| Daughters Of Divine Providence, India | D.D.P. | | | |
| Daughters of Divine Zeal | F.D.Z. | St. Annibale Maria di Francia | | 1887 |
| Daughters of Jesus (Spain) | F.I. | St. Saint Candida Maria of Jesus | | 1871 |
| Daughters of Jesus (France) | | Abbot Pierre Noury | | 1834 |
| Daughters of Mary Immaculate (Dimesse Sisters), India | D.M.I. | | | |
| Daughters of Mary and Joseph (Formerly knows as Ladies of Mary) | D.M.J. | | | |
| Daughters of Mary of the Immaculate Conception | D.M. | Msgr. Lucian Bojnowski | | 1904 |
| Daughters of Mary, Mother of Healing Love | D.M.M.L. | Mother Paul Marie | | 2003 |
| Daughters of Mary, Mother of Our Savior | | Bishop Clarence Kelly | | 1984 |
| Daughters of Mary | D.M. | Msgr. Joseph Kuzhinjalil | | 1938 |
| Daughters of Nazareth | D.N. | | | |
| Daughters of Our Lady of Compassion | D.O.L.C. | Mother Suzanne Aubert | | 1892 |
| Daughters of Our Lady of Mercy, India | F.D.M. | | | |
| Daughters of Our Lady of Mercy | | St. Maria Giuseppa Rossello | | 1837 |
| Daughters of Our Lady of the Garden | O.L.G. | St. Anthony Gianelli | Gianelli | 1829 |
| Daughters of Our Lady of the Sacred Heart | F.D.N.S.C. | | | |
| Daughters of Our Lady of the Sacred Heart | O.L.S.H. | | | |
| Daughters of Presentation of Mary in the Temple, India | D.P.M. | | | |
| Daughters of Providence, St. Brieuc | D.P. | | | |
| Daughters of Saint Mary of Providence | F.S.M.P. | Dina Bosatta, Luigi Guanella | | 1872 |
| Daughters of St. Ann | D.S.A. | | | |
| Daughters of St. Anne of Calcutta | D.S.A. | | | |
| Daughters of St. Anne of Ranchi | D.S.A. | | | |
| Daughters of St. Camillus | D.S.C. | | Camillian | |
| Daughters of St. Francis de Sales | D.S.F.S. | | Salesian | |
| Daughters of St. Francis of Assisi | D.S.F.A. | | Franciscan | 1894 |
| Daughters of St. Joseph | D.S.J. | | | |
| Daughters of St. Mary of Leuca, India | D.M.L. | | | |
| Daughters of St. Mary of Providence (Guanellian Sisters) | D.S.M.P. | | | |
| Daughters of St. Paul (Pauline Sisters) | F.S.P. | Blessed James AlberioneVen. Mother Thecla Merlo | Pauline | 1915 |
| Daughters of St. Thomas | D.S.T. | | | |
| Daughters of Wisdom | D.W. | St. Louis de MontfortBlessed Marie Louise Trichet | Montfortians | 1707 |
| Daughters of the Church | D.C.E.F. | | | |
| Daughters of the Cross of Liege | F.C. | | | |
| Daughters of the Cross | F.D.L.C. | | | |
| Daughters of the Heart of Mary | D.H.M. | | | |
| Daughters of the Holy Cross, Sisters of St. Andrew | | Andrew FournetJoan Elizabeth Bichier des Ages | | 1807 |
| Daughters of the Holy Spirit | | Ven. Félix de Jesús Rougier | Felixian | 1924 |
| Daughters of the Holy Spirit (White Sisters) | D.H.S. | Sr. Marie BelavenneSe. Renée Burel | | 1706 |
| Daughters of the Immaculate Heart of Mary | D.I.H.M. | | | |
| Daughters of the Oratory | F.d.O. | Vincenzo Grossi | | 1885 |
| Daughters of the Sacred Heart of Jesus | D.S.H.J. | | | |
| Daughters of the Sacred Heart of Jesus | F.S.C.G. | Ignazia Verzeri | | 1831 |
| Daughters of the Sacred Heart | D.S.H. | | | |
| De La Salle Brothers | F.S.C. | St. Jean-Baptiste de La Salle | Lasallian | 1680 |
| Deen Bandhu Samaj (India) | D.B.S. | | | |
| Dina Sevana Sabha (Servants of the Poor) | D.S.S. | | | |
| Discalced Augustinians | O.A.D. | | Augustinian | 1592 |
| Discalced Carmelites (Barefoot Carmelites) | O.C.D. | St. Teresa of ÁvilaSt. John of the Cross | Carmelite | 1568 |
| Discalced Mercedarians | O.M.D. | Fr. Juan Bautista González Alcázar, O. de M. | Mercedarian | 1603 |
| Disciples of the Divine Saviour, India | D.D.S. | | | |
| Disciples of the Lord Jesus Christ | | | | |
| Discipulos de los Corazones de Jesus y Maria | D.C.J.M. | | | |
| Dominican Missionaries for the Deaf Apostolate | O.P. Miss. | | Dominican | 2004 |
| Dominican Missionary Sisters of St. Elizabeth | D.M.S.E. | | Dominican | |
| Dominican Nuns of the Perpetual Rosary | O.P. | Mother Domien-Marie Saintourens | Dominican | 1880 |
| Dominicans (Order of Preachers) | O.P. | St. Dominic | Dominican | 13th century |
| Dominican Sisters of Blauvelt (Congregation of St. Dominic of Blauvelt) | O.P. | Mother Mary Sammon | Dominican | 1890 |
| Dominican Sisters of Grand Rapids (Dominican Congregation of Our Lady of the Sacred Heart) | O.P. | Bishop Caspar Henry Borgess | Dominican | 1877 |
| Dominican Sisters of Hawthorne | O.P. | Mother Rose Hawthorne Lathrop | Dominican | 1900 |
| Dominican Sisters of Hope | O.P. | | Dominican | 1995 |
| Dominican Sisters of Mary, Mother of the Eucharist | O.P. | Mother Mary Assumpta Long | Dominican | 1997 |
| Dominican Sisters of Peace | O.P. | | Dominican | 2009 |
| Dominican Sisters of San Rafael (Dominican Congregation of the Most Holy Name of Jesus) | O.P. | Bishop Joseph Sadoc AlemanyMother Mary of the Cross Goemaere | Dominican | 1850 |
| Dominican Sisters of Sparkill (Dominican Congregation of Our Lady of the Rosary) | O.S.D. | Mother Catherine M. Antoninus | Dominican | 1876 |
| Dominican Sisters of St. Cecilia | O.P. | Bishop James Whelan | Dominican | 1860 |
| Dominican Sisters of the Annunciation of the Blessed Virgin | O.P. | St. Francisco Coll Guitart | Dominican | 1856 |
| Dominican Sisters of the Immaculate Conception | O.P. | Mother Maria Bialecka | Dominican | 1861 |
| Dominican Sisters of the Most Holy Name | O.P. | | Dominican | 1850 |
| Dominican Sisters of the Queen of the Rosary | O.P. | | Dominican | 1888 |
| E |||||
| Elim Communities | | Wilfredo Nakar Luli Nakar | Charismatic, Franciscan | 1980 |
| Emmanuel Community | Comm l'Emm | Pierre GoursatMartine Lafitte-Catta | | 1976 |
| English Benedictine Congregation | E.B.C. | | Benedictine | 1607–1633 |
| F |||||
| Faithful Companions of Jesus Sisters | F.C.J. | Ven. Marie-Madeleine d'Houët | | 1820 |
| "Familiares" of Teutonic Order | Fam.O.T. | | | |
| Fathers of Mercy | C.P.M. | Fr. Jean-Baptiste Rauzan | | 1808 |
| Federation of the Sisters of Mercy | R.S.M. | | Sisters of Mercy | 1973 |
| Fervent Daughters of the Sacred Heart of Jesus | F.D.S.H.J. | | | |
| Filippini Sisters (Religious Teachers Filippini, Sisters of St. Lucy Filippini) | M.P.F. | St. Lucy FilippiniCardinal Marco Antonio Barbarigo | | 1692 |
| Filles de la Sagesse, Daughters of Wisdom | F.D.L.S. | | | |
| Foreign Missions Society of Bethlehem in Switzerland (Bethlehem Father) | S.M.B. | | | |
| Francisca Sisters of St. Elizabeth | O.S.E. | | Franciscan | |
| Franciscan Apostolic Sisters | F.A.S. | Fr. Gerardo Filippeto | Franciscan | 1954 |
| Franciscan Brothers of Brooklyn | O.S.F. | Bishop John Loughlin | Franciscan | 1858 |
| Franciscan Brothers of Peace | F.B.P. | Br. Michael Gaworski | Franciscans | 1982 |
| Franciscan Brothers of the Eucharist | F.B.E. | | Franciscans | 2002 |
| Franciscan Brothers of the Holy Cross | F.F.S.C. | James Wirth | Franciscan | 1862 |
| Franciscan Clarist Congregation, India | F.C.C. | | | |
| Franciscan Clarist Congregation | | | Franciscan | 19th century |
| Franciscan Companions of Jesus and Mary | F.C.J.M. | | | |
| Franciscan Friars of the Immaculate | F.I. | Fr. Stefano Maria ManelliFr. Gabriel Maria Pellettieri | Franciscan | 1970 |
| Franciscan Friars of the Renewal | C.F.R. | Fr. Benedict Groeschel | Franciscan | 1987 |
| Franciscan Handmaids of Mary | | Ignatius Lissner | Franciscan | 1915 |
| Franciscan Hospitaller Sisters of the Immaculate Conception | F.H.I.C. | Mother Maria Clara | Franciscan | 1871 |
| Franciscan Immaculative Sisters, India | S.F.I. | | | |
| Franciscan Minims of the Perpetual Help of Mary | F.M. | | Franciscan | 1942 |
| Franciscan Missionary Sisters of Littlehampton | F.M.S.L. | | Franciscan | |
| Franciscan Missionaries of Christ the King | F.M.C.K. | Mother Bridget Sequeira | Franciscan | 1937 |
| Franciscan Missionaries of Mary | F.M.M. | Helene de Chappotin | Franciscan | 1877 |
| Franciscan Missionaries of St. Joseph | F.M.S.J. | | Franciscan | |
| Franciscan Missionaries of the Divine Motherhood | F.M.D.M. | Mother Colette | Franciscan | 1887 |
| Franciscan Missionaries of the Eternal Word | M.F.V.A. | Mother Angelica, PCPA | Franciscan | 1987 |
| Franciscan Missionary Sisters for Africa | F.M.S.A. | | Franciscan | |
| Franciscan Missionary Sisters of the Immaculate Heart of Mary | O.S.F. | Blessed Mary Catherine Troiani | Franciscan | 1868 |
| Franciscan Missionary Sisters of the Infant Jesus | | | Franciscan | 1879 |
| Franciscan Nardini Sisters of the Holy Family (Nardini Sisters, Mallersdorfer Sisters) | F.P.M. | Blessed Paul Joseph Nardini | Franciscan | 1855 |
| Franciscan Servants of Jesus | | | Franciscan | 1997 |
| Franciscan Servants of Mary | F.S.M. | Marie Virginie Vaslin | Franciscan | 1852 |
| Franciscan Servants of the Sacred Heart | S.S.C. | | Franciscan | |
| Franciscan Sisters of Allegany | O.S.F. | Fr. Pamfilo of Magliano | Franciscan | 1859 |
| Franciscan Sisters of Christ the King | | Fr. Eugene N. Heidt | Franciscan | 2000 |
| Franciscan Sisters of Christian Charity | O.S.F. | Ambrose Oschwald | Franciscan | 1869 |
| Franciscan Sisters of Mary Immaculate | | Blessed Mother Caritas Brader | Franciscan | 1893 |
| Franciscan Sisters of Mary | F.S.M. | | Franciscan | 1987 |
| Franciscan Sisters of Mill Hill | O.S.F. | | Franciscan | |
| Franciscan Sisters of Penance of the Sorrowful Mother | T.O.R. | Bishop Albert Henry Ottenweller | Franciscan | 1988 |
| Franciscan Sisters of Perpetual Adoration | F.S.P.A. | | Franciscan | 1849 |
| Franciscan Sisters of Siessen | O.S.F. | | Franciscan | |
| Franciscan Sisters of St. Aloysius Gonzaga | F.S.A.G. | | Franciscan | |
| Franciscan Sisters of St. Clare | F.S.C. | | Franciscan | |
| Franciscan Sisters of St. Joseph | F.S.S.J. | | Franciscan | |
| Franciscan Sisters of St. Mary of the Angels | F.S.M.A. | | Franciscan | |
| Franciscan Sisters of the Eucharist | F.S.E. | | Franciscan | 1973 |
| Franciscan Sisters of the Eucharistic Heart of Jesus | F.E.H.J. | | Franciscan | |
| Franciscan Sisters of the Family of Mary | | Zygmunt Szczęsny Feliński | Franciscan | 1857 |
| Franciscan Sisters of the Immaculate Conception | F.S.I.C. | Refugio Morales | Franciscan | 1874 |
| Franciscan Sisters of the Immaculate Conception | F.I.C. | | Franciscan | |
| Franciscan Sisters of the Sacred Heart | F.S.S.H. | Fr. Wilhelm Berger | Franciscan | 1866 |
| Franciscans of Primitive Observance | F.P.O. | | | |
| Fransalians (Missionaries of St. Francis de Sales) | M.S.F.S. | Fr. Peter Mermier | De Sales | 1838 |
| Fraternity Jesus Caritas | | | Foucauldian | 1952 |
| Fraternity of Charles de Foucauld | | | Foucauldian | 1992 |
| Friars of St. Francis | F.S.F. | | Franciscan | 1993 |
| Friars of the Sick Poor of Los Angeles | F.S.P | Br. Richard Hirbe | Friars | 2001 |
| G |||||
| Glenmary Home Missioners | | Fr. William Howard Bishop | Glenmary | 1939 |
| Glenmary Sisters | | Fr. William Howard Bishop | Glenmary | 1941 |
| Good Shepherd Sisters (Sisters of Jesus the Good Shepherd, Pastorelles) | | Blessed James Alberione | Pauline | 1938 |
| Grey Nuns of the Sacred Heart | G.N.S.H. | | Vincentian-Setonian | 1921 |
| Grey Nuns (Sisters of Charity of Montreal) | S.G.M. | St. Marguerite d'Youville | Vincentian-Setonian | 1738 |
| Grey Sisters of the Immaculate Conception | G.S.I.C. | 77 Sisters of Charity of Ottawa | Vincentian-Setonian | 1926 |
| Groupe Charles de Foucauld | | | Foucaldian | 1923 |
| Guadalupan Missionaries of the Holy Spirit | | Ven. Félix de Jesús Rougier | Felixian | 1930 |
| H |||||
| Handmaids of Charity | A.D.C. | Maria Crocifissa di Rosa | | 1840 |
| Handmaids of Christ the Priest | H.C.P. | | | |
| Handmaids of Christ, India | H.C. | | | |
| Handmaids of the Blessed Sacrament and of Charity | A.A.S.C. | Saint María Micaela of the Blessed Sacrament | | 1950 |
| Handmaids of the Holy Child Jesus | H.H.C.J. | Mother Mary Charles Magdelene Walker | | 1937 |
| Handmaids of the Precious Blood | H.P.B. | | | 1947 |
| Handmaids of the Sacred Heart of Jesus, Mary and Joseph | | | | 1978 |
| Handmaids of the Sacred Heart of Jesus | A.C.J | Raphaela Maria | | 1877 |
| Helpers of Mount Rosary (India) | H.M.R. | | | |
| Heralds of the Good News (India) | H.H.N. | | | |
| Heralds of the Gospel | E.P. | Msgr. João Scognamiglio Clá Dias | Heralds of the Gospel | 1970 |
| Hermanas de la Caridad de Santa Ana (Sisters of Charity of Saint Anne) | H.C.S.A. | | | |
| Hermits of St. Augustine | E.O.S.A. | | Augustinian | |
| Hermits of St. Bruno | H.S.B. | | Carthusian | 2001 |
| Hermits of the Most Blessed Virgin Mary of Mount Carmel | O. Carm. | | Carmelite | 12th century |
| Hieronymites (Order of St. Jerome) | O.S.H. | | Augustinian | 14th century |
| Holy Family Sisters of Spoleto (India) | H.F.S. | | | |
| Holy Spirit Fathers (Apostolic Life Community of Priests), India | A.L.C.P. | | | |
| Holy Spirit Adoration Sisters (Pink Sisters) | S.Sp.S.A.P. | St. Arnold Janssen | Arnoldus | 1896 |
| Hospitaller Sisters of Mercy, India | H.S.M. | | | |
| Hospitaller Sisters of the Sacred Heart of Jesus | H.S.C. | | | |
| I |||||
| Idente Missionaries (Institute of Christ the Redeemer) | M.Id | Fernando Rielo | | 1959 |
| Indian Missionary Society | I.M.S. | Fr. Gaspar A Pinto | | 1941 |
| Institut des Frères Serviteurs | | | Foucauldian | 1979 |
| Institut du Clergé Patriarcal de Bzommar | I.C.P.B. | | | |
| Institute of Brothers of Christian Instruction of Ploermel | F.I.C.P. | | | |
| Institute of Christ the King Sovereign Priest | I.C.R.S.S. | Gilles Wach | | |
| Institute of Foreign Missions, India | M.E. | | | |
| Institute of the Good Shepherd | I.B.P. | | | |
| Institute of Jesus the Priest | | Blessed James Alberione | Pauline | 1959 |
| Institute of Mary of the Annunciation | | Blessed James Alberione | Pauline | 1958 |
| Institute of Our Lady of Guadalupe for Foreign Missions | M.G. | | | |
| Institute of Our Lady of Mercy (Great Britain) | R.S.M. | | Sisters of Mercy | 1983 |
| Institute of Our Lady | I.M.I.M.G. | | | |
| Institute of St. Gabriel the Archangel | | Blessed James Alberione | Pauline | 1958 |
| Institute of the Daughters of Mary, Sisters of the Pious Schools | Sch. P. | St. Paula Montel Fornés | | 1847 |
| Institute of the Holy Family | | Blessed James Alberione | Pauline | 1960 |
| Institute of the Incarnate Word (Instituto del Verbo Encarnado) | I.V.E. | | | |
| Institute of the Incarnate Word | I.V.E. | Fr. Carlos Miguel Buela | Institute of the Incarnate Word | 1984 |
| Institute of the Schoenstatt Sisters of Mary | I.S.S.M. | Joseph Kentenich | Schoenstatt Apostolic Movement | 1926 |
| International Movement of Catholic Students, Pax Romana | I.M.C.S. | | | |
| Istituto del Prado | Ist. del Prado | Antoine Chevrier | | 1856 |
| J |||||
| Jesuits (Society of Jesus) | S.J. | St. Ignatius of Loyola | | 1540 |
| Josephite Sisters (Redemptorists Sisters of St. Joseph) | J.SS.R. | | Josephite | |
| L |||||
| Ladies of Bethany | L.B. | | | 1919 |
| Legion of Christ | L.C. | Fr. Marcial Maciel | Regnum Christi | 1941 |
| Les Filles de la Providence | F.D.L.P. | | | |
| Licentiate in Medieval Studies | L.S.M. | | | |
| Licentiate in Medieval Studies | M.S.L. | | | |
| Little Brothers of Jesus of the Most Blessed Sacrament | | | Foucauldian | |
| Little Brothers of Jesus | L.B.J. | | Foucauldian | 1933 |
| Little Brothers of Nazareth | L.B.N. | | | |
| Little Brothers of the Good Shepherd | B.G.S. | Br. Mathias Barrett | | 1951 |
| Little Brothers of the Gospel | | Fr. René Voillaume | Foucauldian | 1956 |
| Little Daughters of St. Francis Xavier, India | L.D.F.X. | | | |
| Little Flower Congregation | C.S.T. | | | |
| Little Servants of Mary Immaculate | L.S.M.I. | | | |
| Little Servants of the Sacred Heart of Jesus for the Sick Poor | P.S.S.C. | Giovanna Francesca Michelotti | | 1874 |
| Little Sisters of Christ, India | L.S.C. | | | |
| Little Sisters of Jesus | L.S.J. | | | |
| Little Sisters of Jesus | | Madeleine Hutin | Foucauldian | 1939 |
| Little Sisters of Sr. Therese of Lisieux, India | L.S.T. | | | |
| Little Sisters of the Abandoned Elderly | H.A.D. | Teresa of Jesus Jornet | | 1872 |
| Little Sisters of the Assumption | L.S.A. | | | |
| Little Sisters of the Assumption | L.S.A. | Fr. Etienne Pernet | Augustinian | 1865 |
| Little Sisters of the Gospel | | Fr. René Voillaume | Foucauldian | 1963 |
| Little Sisters of the Incarnation | | | | |
| Little Sisters of the Mother of Sorrows | | Clelia Barbieri | | 1868 |
| Little Sisters of the Poor (India) | P.S.D.P. | | | |
| Little Sisters of the Poor | L.S.P. | St. Jeanne Jugan | | 1839 |
| Little daughters of St Joseph | L.D.ofS.J. | | | |
| Living the Gospel Community | L.G.C. | Msgr. Frederick Kriekenbeek | | 1974 |
| Loreto Sisters (Institute of the Blessed Virgin Mary) | I.B.V.M. | Ven. Mary Ward | | 1609 |
| Lovers of the Holy Cross of Bac Ha | L.H.C.B.H. | | Lovers of the Holy Cross | |
| Lovers of the Holy Cross of Binh Cang Nha Trang | L.H.C.B.C.N.T. | | Lovers of the Holy Cross | |
| Lovers of the Holy Cross of Cai Mon | L.H.C.C.M. | | Lovers of the Holy Cross | |
| Lovers of the Holy Cross of Huong-Phuong | L.H.C.H.P. | | Lovers of the Holy Cross | |
| Lovers of the Holy Cross of Nha Trang | L.H.C.N.T. | Bishop Marcel Piquet | Lovers of the Holy Cross | 1955 |
| Lovers of the Holy Cross of Phát Diệm | L.H.C.P.D. | Bishop Alexandre Marcou Thành | Lovers of the Holy Cross | 1902 |
| Lovers of the Holy Cross of Thanh Hoa | L.H.C.T.H. | | Lovers of the Holy Cross | |
| Lovers of the Holy Cross of Phan Thien | L.H.C.P.T. | | Lovers of the Holy Cross | |
| Lovers of the Holy Cross of Tan Viet | L.H.C.T.V. | | Lovers of the Holy Cross | |
| Lovers of the Holy Cross of Thu Thiem | L.H.C.T.T. | | Lovers of the Holy Cross | |
| Lovers of the Holy Cross of Go Vap | L.H.C.G.V. | | Lovers of the Holy Cross | |
| Lovers of the Holy Cross of Los Angeles | L.H.C. | Bishop William R. Johnson | Lovers of the Holy Cross | 1978 |
| Lovers of the Holy Cross (Vietnam) | T.H.C.S. | Bishop Pierre Lambert de la Motte | Lovers of the Holy Cross | 1670 |
| M |||||
| Malabar Missionary Brothers (India) | M.M.B. | | | |
| Marian Fathers of the Immaculate Conception of the Blessed Virgin Mary | M.I.C. | St. Stanislaus Papczyński | | 1673 |
| Marian Sisters of the Diocese of Lincoln (Marian Sisters) | M.S. | | | 1952 |
| Marian Sisters of Santa Rosa | M.S.S.R. | Mother Teresa Christe | | 2012 |
| Marianist Sisters | F.M.I. | Blessed William Joseph ChaminadeVen. Adèle de Batz de Trenquelléon | Marianist | 1816 |
| Marianist Lay Communities | M.L.C. | | Marianist | |
| Marianists (Society of Mary) | S.M. | | Marianist | |
| Marianites of Holy Cross | M.S.C. | Blessed Basil Moreau | Holy Cross | 1841 |
| Marist Brothers | F.M.S. | St. Marcellin Champagnat | Marist | 1817 |
| Marist Fathers (Society of Mary) | S.M. | Ven. Jean-Claude Colin | Marist | 1816 |
| Marist Missionary Sister | S.M.S.M. | | | |
| Marist Sisters | S.M. | Ven. Jean-Claude ColinJeanne-Marie Chavoin | Marist | 1823 |
| Maronite | O.Mar. | | | |
| Maryknoll Fathers and Brothers | M.M. | Thomas Frederick Price & James Anthony Walsh | Maryknoll | 1911 |
| Maryknoll Sisters of St. Dominic | M.M. | Mother Mary Joseph Rogers | Maryknoll | 1912 |
| Maryknoll Society | M.M. | Thomas Frederick Price & James Anthony Walsh and Mother Mary Joseph Rogers | Maryknoll | 1911–1919 |
| Medical Mission Sisters | S.C.M.M. | Dr. Anna Dengel | | 1925 |
| Medical Missionaries of Mary | M.M.M. | Mary Martin | Benedictine | 1937 |
| Medical Sisters of St. Francis of Assisi (India) | O.S.F. | | Franciscan | |
| Medical Sisters of St. Joseph, India | M.S.J. | | | |
| Mehrerau Cistercian Congregation | | | Benedictine | 1624 |
| Mekhitarists | C.M.V. | Abbot Mekhitar of Sebaste | Benedictine | 1717 |
| Mercedarian Missionaries of Berríz | | Mother Margarita Lopez de Maturana | Mercedarian | 1926 |
| Mercedarian Sisters of the Blessed Sacrament | H.M.S.S. | Mother Maria del Refugio | Mercedarian | 1946 |
| Mercedarians (Order of the Blessed Virgin Mary of Mercy) | O. de M.O. Merc. | St. Peter Nolasco | Mercedarian | 1218 |
| Messengers of Mother Mary | M.M.M. | | | |
| Miles Christi | M.C. | Fr. Roberto Juan Yannuzzi | | 1994 |
| Military and Hospitaller Order of St. Lazarus of Jerusalem | O.S.L.J. | Crusaders of the Latin Kingdom of Jerusalem | | 1119 |
| Militia Immaculatae (Knights of the Immaculata) | M.I. | St. Maximillian Kolbe | | 1917 |
| Mill Hill Missionaries (St. Joseph's Missionary Society of Mill Hill) | M.H.M. | Fr. Herbert Alfred Vaughan | | 1866 |
| Minim Nuns (Federation of the Minim Nuns) | | | Minim | |
| Minims | O.M. | St. Francis of Paola | Minim | 1435 |
| Misioneros de Yarumal, Columbia | I.M.E.Y. | | | |
| Mission Helpers of The Sacred Heart | M.H.S.H. | | | 1890 |
| Mission Sisters of Ajmer, India | M.S.A. | | | |
| Missionare Vom Hl. Johannes Des Täufer | M.S.J. | | | |
| Missionaries of Charity | M.C. | St. Mother Teresa of Calcutta | Missionaries of Charity | 1950 |
| Missionaries of Charity Brothers | M.C. | St. Mother Teresa of CalcuttaFr. Ian Travers-Ball | Missionaries of Charity | 1963 |
| Missionaries of Charity Contemplative Fathers and Brothers | M.C. | Mother TeresaFr. Sebastian Vazhakala | Missionaries of Charity | 1979 |
| Missionaries of Charity Contemplative Sisters | M.C. | Mother TeresaSr. M. Nirmala | Missionaries of Charity | 1963 |
| Missionaries of Charity Fathers | M.C. | Mother TeresaFr. Joseph Langford | Missionaries of Charity | 1984 |
| Missionaries of Christ Jesus, India | M.C.J. | | | |
| Missionaries of God's Love | M.G.L. | Fr. Ken Barker | | 1986 |
| Missionaries of Jesus the Eternal Priest | M.J. | Ven. Margherita Maria Guaini | | 1947 |
| Missionaries of La Salette | M.S. | Bishop Philibert de Bruillard | La Salette | 1852 |
| Missionary Sisters of La Salette | S.N.D.S. | Bishop Philibert de Bruillard | La Salette | 1852 |
| Missionaries of the Little Flower | M.L.F. | | | |
| Missionaries of Mariannhill | C.M.M. | Fr. Francis Pfanner | | 1907 |
| Missionaries of Mary Immaculate | M.M.I. | | | |
| Missionaries of Mary Mediatrix | M.M.M. | | | |
| Missionaries of Mary | | Sr. Sophie RenouxSr. Edit FabianSr. Rachel Luxford | | 2007 |
| Missionaries of St. Joseph | M.J. | | | |
| Missionaries of St. Alphonso de Liguori | | St. Anthony Gianelli | Gianelli | 1827 |
| Missionaries of St. Giuseppe of Mexico | M.J. | | | |
| Missionaries of the Blessed Sacrament | M.S.S. | | | |
| Missionaries of the Gospel of Life | | Fr. Frank Pavone | Priests for Life | 2005 |
| Missionaries of the Holy Apostles | M.S.A. | | | |
| Missionaries of the Holy Spirit | M.Sp.S. | Ven. Félix de Jesús Rougier | Felixian | 1914 |
| Missionaries of the Immaculate Heart of Mary | M.I.H.M. | | | |
| Missionaries of the Nativity of Mary | M.N.M. | | | |
| Missionaries of the Poor | M.O.P. | Fr. Richard Ho Lung | | 1981 |
| Missionaries of the Sacred Heart | M.S.C. | Blessed Jules Chevalier | | 1854 |
| Missionaries of the Sacred Hearts of Jesus and Mary | M.SS.C. | | | |
| Missionaries of the Sacred Hearts of Jesus and Mary | M.S.H.J.M. | St. Gaetano Errico | | 1836 |
| Missionary Catechists of Divine Providence | M.C.D.P. | Mother Mary Benitia Vermeersch | Divine Providence | 1930 |
| Missionary Catechists of St. Therese of the Child Jesus | M.C.S.T. | | | |
| Missionary Congregation of Saint Andrew the Apostle | C.M.S.A.A. | Fr. Irineusz Michalik | | 1997 |
| Missionary Congregation of the Blessed Sacrament | M.C.B.S. | Fr. Mathew AlakulamFr. Joseph Paredom | | 1933 |
| Missionary Fathers of Rosa Mystica | M.F.R.M | Francesco Rossi | Rosa mystica Fathers | 1940 |
| Missionary Franciscan of the Immaculate Conception | M.F.I.C. | | | |
| Missionary Fraternity of Mary | M.F.M. | | | |
| Missionary Oblates of Mary Immaculate | O.H.F. | | | |
| Missionary Oblates of Mary Immaculate | O.M.I. | St. Eugène de Mazenod | | 1816 |
| Missionary Oblates of the Holy Family | O.S.F. | Fr. Enrique Méndez Garibay | | 1988 |
| Missionary Servants of Most Holy Trinity | S.T. | | | |
| Missionary Servants of the Most Blessed Trinity | M.S.B.T. | | | |
| Missionary Servants of the Most Holy Trinity | M.T. | | | |
| Missionaries Servants of the Word | M.S.P. | Fr. Luigi Butera | | 1984 |
| Missionary Sisters, Servants of the Holy Spirit | S.Sp.S. | St. Arnold Janssen | Arnoldus | 1889 |
| Missionary Sisters of Incarnation, India | S.M.I. | | | |
| Missionary Sisters of Mary Help of Christians, India | M.S.M.H.C. | | | |
| Missionary Sisters of Mary Immaculate, India | M.S.M.I. | | | |
| Missionary Sisters of Service | M.S.S. | | | |
| Missionary Sisters of St. Theresa, Servant of Passion | S.T.S.P. | Mother G. TeresaBishop J. Morgades de VicMother Benedicta Louisa | Consolars of Christ Passion Family. | 1893–1992 |
| Missionary Sisters of St. Therese of Infant Jesus, India | M.S.S.T. | | | |
| Missionary Sisters of the Assumption | M.S.A. | | | |
| Missionary Sisters of the Blessed Sacrament | S.B.S. | | | |
| Missionary Sisters of the Holy Rosary | M.S.H.R. | | | |
| Missionary Sisters of the Immaculate (Nirmala Sisters), India | M.S.I. | | | |
| Missionary Sisters of the Immaculate Conception | S.M.I.C. | Abbot Armand August BahlmannMother Elizabeth Tombrock | Franciscan | 1910 |
| Missionary Sisters of the Immaculate Heart of Mary | I.C.M. | | | |
| Missionary Sisters of the Queen of the Apostles, India | S.R.A. | | | |
| Missionary Sisters of the Sacred Heart (Cabrini) | M.S.C. | | | |
| Missionary Sisters of the Sacred Heart | M.S.S.H. | | | |
| Missionary Sisters of the Society of Mary | S.M.S.M. | | | |
| Missionary Society of St. Thomas the Apostle | M.S.T. | | | |
| Missionary Society of St. Paul | M.S.S.P. | | | |
| Missionary Society of the Sacred Heart of Jesus, India | M.S.C.J. | | | |
| Missionary Sons of the Sacred Heart of Jesus | M.F.S.C. | | | |
| Missioni Africane di Verona (Verona Fathers) | F.S.C.J. | | | |
| Monks of Bethlehem (Monastic Brothers of Bethlehem, of the Assumption of the Virgin and of St. Bruno) | | | Carthusian | 1976 |
| Monastic Fraternities of Jerusalem | | Br. Pierre-Marie Delfieux | | 1975 |
| Monks of the Most Blessed Virgin Mary of Mount Carmel | M. Carm. | Bishop David L. Ricken | Carmelite | 2003 |
| Montfort Missionaries (Company of Mary) | S.M.M. | St. Louis de Montfort | Montfortian | 1705 |
| N |||||
| Nga Whaea Atawhai o Aotearoa Sisters of Mercy New Zealand | R.S.M. | | Sisters of Mercy | 2005 |
| O |||||
| Oblate Apostles of the Two Hearts | O.A.T.H. | | | 1995 |
| Oblate Hospital Franciscan Sisters (India) | O.H.F.S. | | | |
| Oblate Sisters of Jesus the Priest | O.J.S. | Ven. Félix de Jesús Rougier, M.Sp.S. | | 1924 |
| Oblate Sisters of Providence | O.S.P. | James Nicholas Joubert & Mary Elizabeth Lange | | 1829 |
| Oblate Sisters of St. Francis de Sales | O.S.F.S. | Fr. Louis BrissonMother Marie de Sales Chappuis | Salesian | 1868 |
| Oblate Sisters of the Sacred Heart of Jesus | | Teresa Casini | | 1894 |
| Oblates of Jesus the Priest | O.J.S. | Ven. Félix de Jesús Rougier | Felixian | 1924 |
| Oblates of St. Alphonso de Liguori | | St. Anthony Gianelli | Gianelli | 1838 |
| Oblates of St. Charles | O.S.C. | | | |
| Oblates of St. Francis de Sales | O.S.F.S. | Fr. Louis Brisson | Salesian | 1875 |
| Oblates of St. Joseph (Josephines of Asti) | O.S.I. | | | |
| Oblates of St. Joseph | O.S.J. | St. Joseph Marello | | 1878 |
| Oblates of St. Therese Reformed | O.S.T.R. | | | |
| Oblates of Sts. Ambrose and Charles | O.Ss.C.A. | | | |
| Oblates of Wisdom | O.S. | | | |
| Oblates of the Blessed Trinity | | | Trinitarian | 1987 |
| Oblates of the Holy Spirit | O.S.S. | Elena Guerra | | 1882 |
| Oblates of the Most Holy Trinity | | | Trinitarian | |
| Oblates of the Precious Blood | O.P.B. | | | |
| Oblates of the Virgin Mary | O.M.V. | Bruno Lanteri | | 1827 |
| Olivetans (Order of Our Lady of Mount Olivet) | | St. Bernardo Tolomei | Benedictine | 1313 |
| Opus Dei (The Prelature of the Holy Cross and Opus Dei) | Opus Dei | St. Josemaría Escrivá | Opus Dei | 1928 |
| Opus Spiritus Sancti, India | O.S.S. | | | |
| Order of Augustinian Recollects | O.A.R. | | Augustinian | 16th century |
| Order of Canons Regular of the Holy Cross | O.R.C. | | | |
| Order of Discalced Carmelites Secular | O.C.D.S. | | | |
| Order of Friars Minor Capuchin | O.F.M. Cap. | Fr. Matteo da Bascio | Franciscan | 1525 |
| Order of Friars Minor Conventual (Grey Friars) | O.F.M. Conv. | St. Francis of Assisi | Franciscan | 1209 |
| Order of Friars Minor Regular | O.F.M.Reg. | | | |
| Order of Friars Minor (Franciscan Order) | O.F.M. | St. Francis of Assisi | Franciscan | 1209 |
| Order of Friars of Mary Immaculate (Franciscans) | O.F.M.I. | | Franciscan | |
| Order of Lebanese Maronite (Baladites) | O.L.M. | | | |
| Order of Merciful Christ | O.M.C. | | | |
| Order of Our Most Holy Saviour (Bridgettines), India | O.S.S.S. | | | |
| Order of St. Augustine | O.S.A. | St. Augustine of Hippo | Augustinian | 1244 |
| Order of Saint Basil the Great | O.S.B.M. | | Greek Catholic Churches | 1596 |
| Oblates of St. Benedict | Obl. S.B. | | Benedictine | |
| Order of St. Benedict | O.S.B. | St. Benedict of Nursia | Benedictine | 529 |
| Order of St. Camillus, India | O.S.C. | | | |
| Order of St. Clare (Poor Clares) | O.S.C. | St. Francis of AssisiSt. Clare of Assisi | Franciscan | 1212 |
| Order of the Holy Cross | O.S.Cr. | | | |
| Order of the Ministers of the Sick (Camillians) | M.I. | | | |
| Ottilien Congregation | | Dom Andreas Amrhein | Benedictine | 1884 |
| Our Lady's Missionaries of the Eucharist | O.L.M.E. | | | |
| Our Lady's Nurses of the Poor | O.L.N. | | | |
| P |||||
| Padro Sisters | P.S. | | | |
| Palliumites (Society of the Pallium) | S.S.P. | Pope Pius IX | | 1851 |
| Paris Foreign Missions Society | M.E.P. | Fr. Alexandre de Rhodes | | 1658 |
| Parish Visitors of Mary Immaculate | P.V.M.I. | Mother Mary Teresa Tallon | | 1920 |
| Passionist Nuns (Congregation of the Passion of Jesus Christ) | C.P. | | Passionist | |
| Passionist Sisters (Sisters of the Cross and the Passion) | | Mother Elizabeth Prout | Passionist | 1852 |
| Passionists (Congregation of the Passion) | C.P. | St. Paul of the Cross | Passionist | 1720 |
| Patriarchal Congregation of Bzommar | I.P.C.B. | Patriarch Jacob Petros II Hovsepian | | 1750 |
| Patrician Brothers | F.S.P. | Daniel Delany | | 1808 |
| Pauline Fathers (Order of Saint Paul the First Hermit) | O.S.P.P.E. | Blessed Eusebius of Esztergom | | 1250 |
| Pauvres de Saint-François (Poor of St. Francis) (France) | P.S.F. | | Franciscan | |
| Petites Franciscaines de Marie (Little Franciscans of Mary) (France) | P.F.M. | | Franciscan | |
| Petites Soeurs du Coeur de Jésus (Bangui, Central African Republic) | | | Franciscan | |
| Piarists (Order Poor Clerics Regular of the Mother of God of the Pious Schools, Scolopi, Escolapios) | S.P.Sch. P. | St. Joseph Calasanz | | 1617 |
| Piccole Figlie di St. Giuseppe (Italy) | PP.FF. St. G. | | | |
| Pious Disciples of the Divine Master | P.D.D.M. | Blessed James AlberioneMother Maria Scolastica Rivata | Pauline | 1924 |
| Poor Brothers of St. Francis | C.F.P. | Johannes Hoever | Franciscan | 1861 |
| Poor Clares of Perpetual Adoration | P.C.P.A. | Marie Claire Bouillevaux | Franciscan | 1854 |
| Poor Clares of Santa Barbara | | | Franciscan | 1928 |
| Poor Handmaids of Jesus Christ | P.H.J.C. | Blessed Catherine Kasper | | 1851 |
| Poor Servants of Divine Providence (India) | P.S.D.P. | | | |
| Poor Sisters of Divine Providence (India) | P.S.D.P. | | | |
| Poor Sisters of Jesus Crucified and the Sorrowful Mother | C.J.C. | Fr. Alphonsus Maria | | 1924 |
| Poor Sisters of Nazareth | P.S.N. | | | |
| Poor Sisters of Our Lady (India) | P.S.O.L. | | | |
| Poor Sisters of St. Joseph-Hermanas (Pobres Josefinas Buenoarensas) | P.S.S.J. | | | |
| Portuguese Society for Catholic Missions | S.M.P. | | | |
| Prabhudasi Sisters of Ajmer (Handmaids of the Lord) (India) | P.S.A. | | | |
| Premonstratensians (Order of Canons Regular of Prémontré, Norbertines, White Canons) | O.praem | St. Norbert of Xanten | Premonstratensians | 1120 |
| Presentation Brothers of Mary | F.P.M. | | | |
| Presentation Brothers | F.P.M. | Blessed Edmund Ignatius Rice | Edmund Rice | 1802 |
| Presentation Sisters (Sisters of the Presentation of the Blessed Virgin Mary) | P.B.V.M. | Ven. Nano Nagle | Presentation Sisters | 1775 |
| Presentation Sisters of Watervliet, New York (Sisters of the Presentation of the Blessed Virgin Mary) | P.B.V.M. | Presentation Sisters from Ireland | Presentation Sisters | 1881 |
| Priestly Fraternity of St. Peter | F.S.S.P. | Fr. Josef Bisig | | 1988 |
| Priestly Society of St. Joseph Benedict Cottolengo (Cottolengo Congregation) | S.S.C. | | | 1840 |
| Priestly Society of the Holy Cross | | St. Josemaría Escrivá | Opus Dei | 1943 |
| Priests for Life | P.F.L. | Fr. Lee Kaylor | Priests for Life | 1990 |
| Priests of the Sacred Heart (Dehonians) | S.C.J. | Fr. Léon Dehon | | 1878 |
| Putri Karmel | | | Carmelite | 1982 |
| Q |||||
| Queen of Apostles Sisters (Sisters of Mary, Queen of Apostles) | | Blessed James Alberione | Pauline | 1959 |
| Qui Nhon Missionary Sisters of the Holy Cross | L.H.C. | | Lovers of the Holy Cross | 1922 |
| R |||||
| Racine Dominican Sisters (Congregation of Sisters of St. Dominic of St. Catherine of Sienna) | O.P. | | Dominican | 1862 |
| Redemptoristines (Order of the Most Holy Redeemer) | O.S.S.R. | Maria Celeste CrostarosaSt. Alphonsus Liguori | Redemptorist | 1731 |
| Redemptorists (Congregation of the Most Holy Redeemer) | C.Ss.R. | St. Alphonsus Liguori | Redemptorist | 1732 |
| Regina Virginum | E.P. | Msgr. João Scognamiglio Clá Dias | Heralds of the Gospel | 2005 |
| Regnum Christi Consecrated Men | R.C. | Fr. Marcial MacielFr. Álvaro Corcuera | Regnum Christi | 1975 |
| Regnum Christi Consecrated Women | R.C. | Margarita EstradaGuadalupe MagañaGraciela Magaña | Regnum Christi | 1969 |
| Regular Franciscan Tertiary Sisters, India | R.F.T.S. | | | |
| Religieux de Saint Paul de Vincent | R.S.V. | | | |
| Religious Sisters of Charity (Irish Sisters of Charity) | R.S.C. | Mary Aikenhead | | 1815 |
| Sisters of Mercy of Philippines | R.S.M. | Bishop Lino Gonzaga | Sisters of Mercy | 1954 |
| Religious Sisters of Mercy of Alma, Michigan | R.S.M. | | | 1973 |
| Religious of Christian Education | | Abbé Louis Lafosse | | 1817 |
| Religious of Divine Compassion | R.D.C. | | | |
| Religious of Jesus and Mary | R.J.M. | St. Claudine Thévenet | | 1818 |
| Religious of Mary Immaculate | R.M.I. | Vincentia Maria López y Vicuña | | 1876 |
| Religious of Nazareth | | | | |
| Religious of the Assumption | R.A. | Mother Marie-Eugénie de Jésus, R.A. | Assumptionist Sisters | 1839 |
| Religious of the Sacred Heart of Mary | R.S.H.M. | Jean Gailhac | | 1849 |
| Religious of the Virgin Mary | R.V.M. | Ven. Ignacia del Espíritu Santo | | 1684 |
| Resurrectionist Congregation | C.R. | Peter Semenenko | | 1836 |
| Rogationists of the Heart of Jesus | R.C.J. | St. Annibale Maria di Francia | | 1897 |
| Rosminians (Institute of Charity) | I.C. | Blessed Antonio Rosmini-Serbati | | 1828 |
| S |||||
| Sacred Heart Congregation, India | S.H. | | | |
| Sacred Heart Sisters, India | S.H.S. | | | |
| Sadhu Sevana Sisters (India) | S.S.S. | Fr. Thomas Maliekal | | 1975 |
| Saint Joseph Sevika Samtha, India | S.J.S. | | | |
| Saint Patrick’s Society for the Foreign Missions (Kiltegan Fathers) | S.P.S. | Bishop Joseph ShanahanFr. Patrick Whitney | | 1920 |
| Salesian Missionaries of Mary Immaculate, India | S.M.M.I. | | | |
| Salesian Sisters (Daughters of Mary Help of Christians) | F.M.A. | St. Maria Domenica Mazzarello | Salesian | 1872 |
| Salesians of Don Bosco (Society of St. Francis de Sales) | S.D.B. | St. John Bosco | Salesian | 1857 |
| Salvatorians (Society of the Divine Savior) | S.D.S. | Ven. Francis Mary of the Cross Jordan | | 1881 |
| Satya Seva Catechist Sisters, India | S.C.S. | | | |
| Scalabrinian Missionaries (Missionaries of St. Charles Borromeo) | C.S. | Blessed Giovanni Battista Scalabrini | Scalabrinian | 1887 |
| Scalabrinian Missionary Sisters (Missionary Sisters of St. Charles Borromeo) | C.S. | Blessed Giovanni Battista Scalabrini | Scalabrinian | 1895 |
| Scarboro Foreign Mission Society | S.F.M. | | | 1918 |
| School Sisters of Christ the King | C.K. | Bishop Glennon Patrick Flavin | | 1976 |
| School Sisters of Notre Dame | S.S.N.D. | Mother Caroline Gerhardinger | | 1833 |
| School Sisters of St. Francis | S.S.S.F. | Sr. Mary Alexia | Franciscan | 1874 |
| Secular Franciscans | O.F.S. | | | |
| Secular Institute of Schoenstatt Fathers | ISch | Joseph Kentenich | Schoenstatt Apostolic Movement | 1965 |
| Secular Order of Jesus, Mary and Joseph | J.M.J. | | | |
| Servants of Charity (Guanellians) | Sd.C.S.C. | St. Luigi Guanella | | 1908 |
| Servants of Christ the Priest | S.C.P. | | | |
| Servants of Christ | A.KA.D.S.K | Mgr. Petrus Johannes Willekens. SJ | | 1938 |
| Servants of Mary, India | S.M. | | | |
| Servants of Mary, Mother of Sorrow, India | O.S.M. | | | |
| Servants of the Blessed Sacrament | | St. Peter Julian EymardMother Marguerite Guillot | Eymardian | 1858 |
| Servants of the Holy Child Jesus (Franciscans) | O.F.S. | | | |
| Servants of the Holy Cross | | | Augustinian | |
| Servants of the Holy Family | S.S.F. | | | 1977 |
| Servants of the Holy Heart of Mary | S.S.C.M. | | | |
| Servants of the Lord and the Virgin of Matara | S.S.V.M | Fr. Carlos Miguel Buela | Institute of the Incarnate Word | 1985 |
| Servites (Order of the Servants of Mary) | O.S.M. | Seven Holy Founders | Servites | 1233 |
| Servite Sisters (Religious Sisters of the Third Order of Servites, Mantellates) | O.S.M. | St. PhilipSt. Juliana Falconieri | Servites | 1284 |
| Seva Missionary Sisters of Mary | S.M.S.M. | Msgr. John Kottaram | | 1974 |
| Sinsinawa Dominican Sisters (Sinsinawa Dominican Congregation of the Most Holy Rosary) | O.P. | Fr. Samuel Charles Mazzuchelli | Dominican | 1847 |
| Sister Servants of the Eternal Word of Birmingham, Alabama | S.S.E.W. | | | |
| Sisters Adorers of the Precious Blood and Daughters of Mary Immaculate | A.P.B. | | | |
| Sisters Adorers of the Precious Blood | R.P.G. | Mother Catherine Caouette | | 1861 |
| Sisters Adorers of the Royal Heart of Jesus Christ Sovereign Priest | ACRJCSS | Cardinal Ennio Antonelli | Salesian | 2004 |
| Sisters Little Workers of the Sacred Hearts, India | L.W.S.H. | | | |
| Sisters Minor of Mary Immaculate | S.M.M.I. | | | |
| Sisters Minor of Mary Immaculate | | Fr. Elia M. Bruson, OFM Conv.Mother Maria Elisabetta Patrizi | | 1983 |
| Sister Servants of Mary Immaculate (Byzantine rite) | S.S.M.I. | | | |
| Sisters Servants of Our Lady of Sorrows, India | S.O.L.S. | | | |
| Sisters Servants of the Poor, India | S.D.P. | | | |
| Sisters for Christian Community | S.F.C.C. | | | |
| Sisters of Bethlehem (Monastic Sisters of Bethlehem, of the Assumption of the Virgin and of St. Bruno) | | | Carthusian | 1950 |
| Sisters of Calvary | S.C. | | | |
| Sisters of Charity of Australia | R.S.C. | | Vincentian-Setonian | 1838 |
| Sisters of Charity of Cincinnati | S.C. | Mother Margaret Farrell George | Vincentian-Setonian | 1829 |
| Sisters of Charity of Good and Perpetual Succour | B.P.S. | Mother Caroline Lenferna de Laresle | Vincentian-Setonian | 1850 |
| Sisters of Charity of Jesus and Mary, India | S.C.J.M. | | | |
| Sisters of Charity of Jesus and Mary | | Canon Petrus Joseph Triest | Vincentian-Setonian | 1803 |
| Sisters of Charity of Leavenworth | S.C.L. | Mother Xavier Ross | Vincentian-Setonian | 1858 |
| Sisters of Charity of Nazareth | S.C.N. | Bishop John Baptist Mary David | Vincentian-Setonian | 1812 |
| Sisters of Charity of Nevers | | Dom Jean-Baptiste Delaveyne | Vincentian-Setonian | 1680 |
| Sisters of Charity of New York | S.C. | 3 Sisters of Charity from Philadelphia | Vincentian-Setonian | 1841 |
| Sisters of Charity of Ottawa (Grey Nuns of Ottawa) | S.C.O. | Mother Elizabeth Bruyere | Vincentian-Setonian | 1845 |
| Sisters of Charity of Our Lady Mother of the Church | | | Vincentian-Setonian | |
| Sisters of Charity of Our Lady of Evron | | Mother Perrine Thulard | Vincentian-Setonian | 1682 |
| Sisters of Charity of Our Lady of Mercy | O.L.M. | Bishop John England | Vincentian-Setonian | 1829 |
| Sisters of Charity of Providence | S.P. | Blessed Émilie Gamelin | | 1844 |
| Sisters of Charity of Quebec | S.C.Q. | Mother Marcelle Mallet | Vincentian-Setonian | 1849 |
| Sisters of Charity of St. Elizabeth | S.C. | Mother Mary Xavier Mehegan | Vincentian-Setonian | 1859 |
| Sisters of Charity of Halifax (Sisters of Charity of St. Vincent de Paul) | S.C. | Archbishop William Walsh | Vincentian-Setonian | 1849 |
| Sisters of Charity of Sts. Bartolomea Capitanio and Vincenza Gerosa | S.C.C.G. | St. Bartolomea CapitanioSt. Vincenza Gerosa | Vincentian-Setonian | 1832 |
| Sisters of Charity of Seton Hill | S.C. | Mother Aloysia Lowe | Vincentian-Setonian | 1870 |
| Sisters of Charity of St. Ann | S.Ch.S.A. | | Vincentian-Setonian | |
| Sisters of Charity of St. Augustine | S.C.A. | Bishop Louis Amadeus Rappe | Augustinian | 1851 |
| Sisters of Charity of St. Hyacinthe | S.C.S.H. | Archbishop Joseph Signay | Vincentian-Setonian | 1840 |
| Sisters of Charity of St. Joan Antida | S.C.S.J.A. | | | |
| Sisters of Charity of St. John of God (India) | S.C.J.G. | | Vincentian-Setonian | |
| Sisters of Charity of St. Paul | S.P.C. | Fr. Louis Chauvet | | 1696 |
| Sisters of Charity of the -Blessed Virgin Mary | B.V.M. | Mother Mary Frances Clarke | Vincentian-Setonian | 1831 |
| Sisters of Charity of the Immaculate Conception | S.C.I.C. | Bishop Thomas-Louis ConnollyMother Honoria Conway | Vincentian-Setonian | 1854 |
| Sisters of Charity of the Incarnate Word of Houston | C.C.V.I. | Bishop Claude Marie Dubuis | Augustinian | 1866 |
| Sisters of Charity of the Incarnate Word of San Antonio | C.C.V.I. | Bishop Claude Marie DubuisSt. Madeleine Chollet | Augustinian | 1869 |
| Sisters of Christian Charity | S.C.C. | Blessed Pauline von Mallinckrodt | | 1849 |
| Sisters of Good News, India | S.G.N. | | | |
| Sisters of Holy Cross (Montreal) | C.S.C. | | Holy Cross | 1847 |
| Sisters of Jesus Crucified | C.J.C. | | | |
| Sisters of Jesus, Our Hope | S.J.H. | | | 1992 |
| Sisters of Jesus | S.J. | | | |
| Sisters of La Retraite | | Mother Catherine de Francheville | | 1674 |
| Sisters of Life | S.V. | Cardinal John Joseph O'Connor | Augustinian | 1991 |
| Sisters of Maria Auxilium, India | S.M.A. | | | |
| Sisters of Marie-Auxiliatrice | M.A. | Sophie-Thérèse de Soubiran La Louvière | | 1864 |
| Sisters of Mary Immaculate | S.M.I. | | | |
| Sisters of Mary Queen | C.M.R. | | | |
| Sisters of Mary of the Presentation | S.M.P. | Father Joachim Fleury, Mother St. Louis | Vincentian | 1828 |
| Sisters of Mary, Mother of the Church | S.M.M.C. | 7 Founders in the Diocese of Spokane | | 2007 |
| Sisters of Mercy in Australia and Papua New Guinea | R.S.M. | Mother Ursula Frayne | Sisters of Mercy | 1846 |
| Sisters of Mercy of Newfoundland | R.S.M. | | Sisters of Mercy | |
| Sisters of Mercy of St. Borromeo of Alexandria | | | Borromean Sisters | 1884 |
| Sisters of Mercy of St. Borromeo of Cairo | | | Borromean Sisters | 1904 |
| Sisters of Mercy of St. Borromeo of Emmaus | | | Borromean Sisters | |
| Sisters of Mercy of St. Borromeo of Haifa | | | Borromean Sisters | 1888 |
| Sisters of Mercy of St. Borromeo of Jerusalem | | | Borromean Sisters | 1886 |
| Sisters of Mercy of St. Borromeo of Maastricht | | Fr. Peter Anton van Baer | Borromean Sisters | 1837 |
| Sisters of Mercy of St. Borromeo of Nancy | | | Borromean Sisters | 1626 |
| Sisters of Mercy of St. Borromeo of Prague | | Prince-Bishop Alois Josef, Freiherr von Schrenk | Borromean Sisters | 1838 |
| Sisters of Mercy of St. Borromeo of Trebnitz | | Prince-Bishop Melchior, Freiherr von Diepenbrock | Borromean Sisters | 1848 |
| Sisters of Mercy of St. Borromeo of Trier | | Nancy Borromean Sisters | Borromean Sisters | 1811 |
| Sisters of Mercy of Verona | I.S.M. | Charles SteebLuigia Poloni | | 1840 |
| Sisters of Mercy of the Americas | R.S.M. | | Sisters of Mercy | 1991 |
| Sisters of Mercy of the Holy Cross (Ingenbohl), India | S.C.S.N. | | | |
| Sisters of Mercy of the Union (Great Britain) | R.S.M. | | Sisters of Mercy | 1976 |
| Sisters of Mercy (Religious Sisters of Mercy) | R.S.M. | Mother Catherine McAuley | Sisters of Mercy | 1831 |
| Sisters of Mission Service | S.M.S. | Fr. Godfrey W. Kuckartz, OMI | | 1951 |
| Sisters of Most Holy Sacrament | S.M.H.S. | | | |
| Sisters of Notre Dame de Namur | S.N.D.S.N.D. de N. | Julie Billiart | | 1803 |
| Sisters of Notre Dame of Coesfeld | S.N.D. | | | |
| Sisters of Our Lady of Consolation | | | Augustinian | |
| Sisters of Our Lady of Fatima | F.S. | | | |
| Sisters of Our Lady of Mercy, India | O.M. | | | |
| Sisters of Our Lady of Mercy | S.O.L.M. | | | |
| Sisters of Our Lady of Sion | N.D.S. | Fr. Marie Theodor RatisbonneFr. Marie-Alphonse Ratisbonne | Congregation of Our Lady of Sion | 1843 |
| Sisters of Our Lady of Sorrows (Servants of Mary of Pisa), India | O.S.M. | | | |
| Sisters of Our Lady of the Garden | O.L.G. | | | |
| Sisters of Our lady of Providence, India | O.L.P. | | | |
| Sisters of Providence of St. Mary-of-the-Woods | S.P. | Theodore Guerin | | 1840 |
| Sisters of Providence of St. Vincent de Paul | S.P. | 4 Sisters of Charity of Montreal | Vincentian-Setonian | 1861 |
| Sisters of Sacred Sciences | S.S.S. | Fr. Antony Kolencherry | | 1997 |
| Sisters of St. Agnes | | Caspar Rehrl | | 1858 |
| Sisters of Saint Anne | C.S.S.A. | Blessed Marie Anne Blondin | | 1850 |
| Sisters of St. Casimir | S.S.C. | Mother Maria Kaupas | | 1907 |
| Sisters of St. Chretienne | S.S.Ch. | Anne Victoire de Mejanes Tailleur | | 1807 |
| Sisters of St. Dorothy (Dorotheans) | S.S.D. | Paula Frassinetti | | 1834 |
| Sisters of St. Elizabeth | | Mother Dorothea Wolff | | 1842 |
| Sisters of St. Francis of Rochester, Minnesota | | Sister Mary Alfred Moes | Franciscan | 1877 |
| Sisters of St. Joseph of Chambéry | | Sisters of St. Joseph of Lyons | | 1812 |
| Sisters of St. Louis | S.S.L. | | | |
| Sisters of St. Martha | C.S.M. | Bishop John Cameron | Vincentian-Setonian | 1900 |
| Sisters of Social Service | S.S.S. | Mother Margit Slachta | Benedictine | 1923 |
| Sisters of St. Rita | | Fr. Hugolinus Dach, O.S.A. | Augustinian | 1911 |
| Sisters of St. Therese of the Child Jesus (St. Therese Sisters) | S.S.Th. | Maria Crocifissa Curcio | | 20th century |
| Sisters of St. Agatha, India | S.S.A. | | | |
| Sisters of St. Ann of Providence, India | S.A.(P) | | | |
| Sisters of St. Ann | S.S.A. | | | |
| Sisters of St. Anne of Tiruchirapalli, India | S.A.T. | | | |
| Sisters of St. Anne, Bangalore, India | S.A.B. | | | |
| Sisters of St. Benedict of Our Lady of Grace | | | | |
| Sisters of St. Brigid | S.S.B. | | | |
| Sisters of St. Dorothy (Daughters of the Sacred Heart) | D.S.H.S. | | | |
| Sisters of St. Francis of Assisi | | | Franciscan | 1849 |
| Sisters of St. Francis of Assisi | | 37 Franciscan Sisters of Perpetual Adoration | Franciscan | 1873 |
| Sisters of St. Francis of Penance and Christian Charity | | Mother Magdalen Damen | Franciscan | 1835 |
| Sisters of St. Francis of the Martyr St. George | F.S.G.M. | Fr. John Gerard DallMother M. Anselma Bopp | Franciscan | 1869 |
| Sisters of St. Joan of Arc | | | Augustinian | |
| Sisters of St. John the Baptist and Mary the Queen, India | S.J.B. | | | |
| Sisters of St. John the Baptist, India | S.C.J.B. | | | |
| Sisters of St. John the Baptist | C.S.J.B. | | | 1876 |
| Sisters of St. Joseph of "St. Marc", India | S.J.S.M. | | | |
| Sisters of St. Joseph of Cluny, India | S.J.C. | | | |
| Sisters of St. Joseph of Lyons, India | S.J.L. | | | |
| Sisters of St. Joseph of Peace | C.S.J.P. | Margaret Anna Cusack | | 1884 |
| Sisters of St. Joseph of Springfield | | | | |
| Sisters of St. Joseph of Tarbes | S.J.T. | | | |
| Sisters of St. Joseph of the Apparition, India | S.J.A. | | | |
| Sisters of St. Joseph of the Apparition | | St. Emily de Vialar | | 1832 |
| Sisters of St. Joseph of the Sacred Heart (Australian Josephites) | R.S.J. | | | |
| Sisters of St. Joseph of the Sacred Heart | S.S.J. | | | 1866 |
| Sisters of St. Joseph of the Third Order of St. Francis | S.S.J.-T.O.S.F. | 46 members of the School Sisters of St. Francis | Franciscan | 1901 |
| Sisters of St. Joseph the Worker | S.J.W. | | | |
| Sisters of St. Joseph's Congregation, India | S.J.C. | | | |
| Sisters of St Joseph (Sisters of Saint Joseph of Medaille) | C.S.J. | Fr. Jean Paul Médaille | | 1650 |
| Sisters of St. Maria Magdelena Postel, India | S.M.M.P. | | | |
| Sisters of St. Martha, India | C.S.M. | | | |
| Sisters of St. Mary of Namur | S.S.M.N. | Fr. Nicholas Minsart | | 1819 |
| Sisters of St. Mary of Oregon | S.S.M.O. | 9 Oregonian women | | 1886 |
| Sisters of St. Paul Third Order Regular | C.S.P.T.O.R. | | Paulist | |
| Sisters of St. Peter Claver (India) | S.S.P.C. | | | |
| Sisters of St. marth's Congregation, India | S.M.C. | | | |
| Sisters of the Adoration of the Blessed Sacrament, India | S.A.B.S. | | | |
| Sisters of the Apostolic Carmel | A.C. | Mother Veronica of the Passion | Carmelite | 1870 |
| Sisters of the Blessed Sacrament | S.B.S. | St. Katharine Drexel | | 1891 |
| Sisters of the Cenacle | R.C. | Fr. Jean-Pierre Etienne TermeMother Thérèse Couderc | | 1826 |
| Sisters of the Child Jesus of Chauffailles | R.E.J. | | Sisters of the Child Jesus | 1859 |
| Sisters of the Child Jesus of Le Puy-en-Velay | R.E.J. | Mother Ann-Marie Martel | Sisters of the Child Jesus | 1676 |
| Sisters of the Christian Retreat, Chuscian | C.R. | | | |
| Sisters of the Cross and Passion | C.S.P. | | | |
| Sisters of the Cross and Passion | C.P. | Mother Elizabeth Prout | Passionist | 1852 |
| Sisters of the Cross of Chavanod, India | S.C.C. | | | |
| Sisters of the Destitute | | Fr. Varghese Payyappilly Palakkappilly | | 1927 |
| Sisters of the Divine Compassion | | Mother Mary Veronica | | 1886 |
| Sisters of the Divine Savior | S.D.S. | Blessed Maria Therese von WüllenweberVen. Francis Mary of the Cross Jordan | | 1888 |
| Sisters of the Eucharistic Heart of Jesus | E.H.J. | | | |
| Congregation of Our Lady of Fidelity | N.D.F. | Mother Henriette le Forestier d'Osseville | | 1831 |
| Sisters of the Good Samaritan | S.G.S. | | | |
| Sisters of the Good Shepherd (Congregation of Our Lady of Charity of the Good Shepherd) | R.G.S. | St. Mary Euphrasia Pelletier | Good Shepherd Sisters | 1835 |
| Sisters of the Good Shepherd of Omaha | R.G.S. | Bishop Richard Scannell | Good Shepherd Sisters | 1894 |
| Sisters of the Guardian Angel | S.A.C. | | | |
| Sisters of the Holy Childhood of Jesus and Mary | | Anne-Victoire Méjanes | | 1807 |
| Sisters of the Holy Cross (Menzingen), India | H.C.M. | | | |
| Sisters of the Holy Cross, India | S.H.C. | | | |
| Sisters of the Holy Cross | H.C. | | | |
| Sisters of the Holy Cross (Indiana) | C.S.C. | | Holy Cross | 1841 |
| Sisters of the Holy Family (Louisiana) | S.H.F. | Ven. Henriette DeLille | | 1837 |
| Sisters of the Holy Family of Nazareth, Indiav | S.F.N. | | | |
| Sisters of the Holy Family of Nazareth | C.S.F.N. | Franciszka Siedliska | | 1875 |
| Sisters of the Holy Family of Villefranche | S.F. | St. Émilie de Rodat | | 1816 |
| Sisters of the Holy Humility of Mary | H.M. | Fr. John Joseph Begel | | 1856 |
| Sisters of the Holy Names of Jesus and Mary | S.N.J.M. | Marie Rose Durocher | | 1837 |
| Sisters of the Holy Redeemer | C.S.R. | | | |
| Sisters of the Holy Redeemer | | | | |
| Sisters of the Holy Spirit and Mary Immaculate | S.H.Sp. | Mother Margaret Mary Healy Murphy | | 1887 |
| Sisters of the Holy Trinity | C.S.S.T. | | | |
| Sisters of the Holy Union of the Sacred Hearts | S.U.S.C. | John Baptist Debrabant | Salesian | 1828 |
| Sisters of the Imitation of Christ, India | S.I.C. | | | |
| Sisters of the Immaculate Conception of Castres | | St. Émilie de Villeneuve | | 19th century |
| Sisters of the Incarnate Word and Blessed Sacrament, Corpus Christi | I.W.B.S. | | | |
| Sisters of the Incarnate Word and Blessed Sacrament | C.V.I. | | | |
| Sisters of the Incarnate Word and Blessed Sacrament | S.I.W. | | | |
| Sisters of the Infant Jesus | I.J. | Fr. Nicholas Barré | | 1666 |
| Sisters of the Little Company of Mary | L.C.M. | | | |
| Sisters of the Little Flower of Bethany (India) | B.S. | | | |
| Sisters of the Living Word, Metairie Louisiana | S.L.W. | | | |
| Sisters of the Poor of St. Catherine of Sienna, India | S.D.P. | | | |
| Sisters of the Poor, Palazzolo Institute | S.d.P.I.P. | Luigi Maria Palazzolo | | 1869 |
| Sisters of the Presentation of Mary | P.M. | Blessed Anne-Marie Rivier | | 1796 |
| Sisters of the Reparation of the Holy Face | | Ven. Hildebrand Gregori | Benedictine | 1950 |
| Sisters of the Sacred Heart of Jesus, India | S.S.H.J. | | | |
| Sisters of the Sacred Heart, India | S.S.H. | | | |
| Sisters of the Savior and the Blessed Virgin Mary | C.S.V.B. | | | |
| Sisters of the Society Devoted to the Sacred Heart | S.D.S.H. | | | 1941 |
| Sisters of the Society of St. Pius X | | Archbishop Marcel Lefebvre | | 1974 |
| Sisters, Servants of the Immaculate Heart of Mary (Chester County, Pennsylvania) | I.H.M. | St. John NeumannMother Marie Theresa Duchemin | Immaculate Heart of Mary | 1858 |
| Sisters, Servants of the Immaculate Heart of Mary (Monroe, Michigan) | I.H.M. | Fr. Louis Florent Gillet, C.Ss.R.Mother Marie Theresa DucheminMother Theresa Maxis | Immaculate Heart of Mary | 1845 |
| Sisters, Servants of the Immaculate Heart of Mary (Scranton, Pennsylvania) | I.H.M. | | Immaculate Heart of Mary | 1871 |
| Sisters, Servants of the Lord and the Virgin of Matará | S.S.V.M. | | | 1988 |
| Sisters, Servants of the Most Sacred Heart of Jesus | S.S.C.J. | | | 1894 |
| Slav Congregation | O.S.B. | | Benedictine | 1945 |
| Snehagiri Missionary Sisters | S.M.S. | Fr. Abraham Kaippanplackal | | 1963 |
| Societatis Iesu, Latin for Society of Jesus, Jesuits | S.I. | | | |
| Society of African Missions (S.M.A. Fathers) | S.M.A. | Fr. Melchior de Marion Brésillac | | 1850 |
| Society of Bethlehem Mission Immensee | S.M.B. | | | 1921 |
| Society of Bethlemite Sisters | Bethl. | | | |
| Society of Christ (The Society of Christ for Poles Living Abroad) | S.Chr. | Venerable August HlondServant of God Ignacy Posadzy | | 1932 |
| Society of Daughters of Mary Immaculate, India | D.M. | | | |
| Society of Devpriya Sisters, India | D.P. | | | |
| Society of Helpers of Mary, India | S.H.M. | | | |
| Society of Khristudasis, India | S.K.D. | | | |
| Society of Ladies of Mary Immaculate, India | S.L.M.I. | | | |
| Society of Marian Servants of Jesus | S.M.S.J. | | | 2010 |
| Society of Nirmaladasi Sisters, India | S.N.D.S. | | | |
| Society of Our Lady of Africa, India | S.O.L.A. | | | |
| Society of Our Lady of the Most Holy Trinity | S.O.L.T. | Fr. James H. Flanagan | Trinitarian | 1958 |
| Society of St. Augustine (Kansas Augustinians) | S.S.A. | 4 Augustinian Recollects | Augustinian | 1981 |
| Society of St. Edmund (Edmundians) | S.S.E. | Fr. Jean Baptiste Muard | | 1843 |
| Society of Saint John Vianney | S.S.J.V. | | | |
| Society of St. Paul (Paulines) | S.S.P. | Blessed Giacomo Alberione | Pauline | 1914 |
| Society of St. Vincent de Paul | S.V.d.P.S.V.P.S.S.V.D.P. | Blessed Antoine-Frédéric Ozanam | Vincentian-Setonian | 1833 |
| Sulpician Fathers (Society of Saint-Sulpice) | P.S.S.S.S.$^{[intheU.S.]}$ | Fr. Jean-Jacques Olier | | 1642 |
| Society of St. John (Societas Sancti Ioannis) | S.S.I. | | | |
| Society of St. John | S.S.J. | | | |
| Society of St. Pius X | S.S.P.X. | Archbishop Marcel Lefebvre | | 1970 |
| Society of the Atonement (Atonement Friars, Graymoor Friars) | S.A. | | | 1909 |
| Society of the Divine Word | S.V.D. | St. Arnold Jansen | Arnoldus | 1875 |
| Society of the Helpers of the Holy Souls | A.P.H.H.S. | Blessed Eugenia Smet | | 1856 |
| Society of the Holy Child Jesus | S.H.C.J. | Mother Cornelia Connelly | | 1846 |
| Society of the Immaculata | S.I. | | | |
| Society of the Missionaries of St. Francis Xavier | S.F.X. | Fr. Jose Mariano Bento Martins | | 1887 |
| Society of the Missionary Servants of the Poor | M.S.o.P. | | | 2008 |
| Society of the Oblates of Mary at the Foot of the Cross | M.F.C. | | | |
| Society of the Sacred Heart of the Infant Jesus | S.C.J. | | | |
| Society of the Sacred Heart | R.S.C.J. | St. Madeleine Sophie Barat | | 1800 |
| Society of the Sisters of St. Ann (Luzen), India | S.A.S. | | | |
| Société des Missions-Étrangères du Québec | P.M.E. | | | 1921 |
| Sodality of Christian Life (Sodalicio de Vida Christiana) | S.C.V. | | | 1971 |
| Solesmes Congregation | O.S.B. | Pope Gregory XVI | Benedictine | 1837 |
| Sons of Divine Providence | F.D.P. | | | |
| Sons of Mary Health of the Sick | F.M.S.I | Fr. Edward F. Garesche, SJ | | 1952 |
| Sons of Merciful Love | F.A.M. | Sr. Esperanza Jesus Alhama Valera | | 1951 |
| Sons of the Holy Family | S.F. | Fr. Josep Manyanet i Vives | | 1864 |
| Sororem Franciscalium ab Immaculata Conceptione a Beata Matre Dei | S.F.I.C. | | | |
| Sovereign Military Order of Malta | S.M.O.M. | Blessed Gerard Thom | | 1099 |
| Spanish Institute of St. Francis Xavier for Foreign Missions | I.E.M.E. | | Xaverian | |
| Stigmatines (Congregation of the Sacred Stigmata) | C.S.S. | St. Gaspar Bertoni | | 1816 |
| Subiaco Cassinese Congregation | O.S.B. | Dom Pietro Casaretto | Benedictine | 1867 |
| Swiss Congregation | O.S.B. | | Benedictine | 1602 |
| Swiss-American Congregation | O.S.B. | Pope Leo XIII | Benedictine | 1881 |
| Sylvestrine Congregation | O.S.B. Silv. | St. Sylvester Gozzolini | Benedictine | 1231 |
| T |||||
| Taborite Nuns of Mary Immaculate | | | | |
| Tertiary Sisters of St. Francis – Cameroon | T.O.S.F. | | | 1935 |
| Tertiary Sisters of St. Francis | | Mother Maria Heuber | Franciscan | 1700 |
| Teutonic Knights (Order of Brothers of the German House of Saint Mary in Jerusalem, German Order) | O.S.M.T. | | Teutonic Order | 1192 |
| Third Order of Saint Dominic | T.O.P. | | | |
| The Sisters of the Sacred Heart and of the Poor (Hermanas de la Sagrada Corazon y los Pobres) | H.S.C.P. | | | |
| Third Order Secular of the Most Holy Trinity | O.SS.T. Ter. | | Trinitarian | |
| Trappist Nuns (Cistercian Nuns of Strict Observance) | | | Benedictine | |
| Trappists (Order of Cistercians of Strict Observance) | O.C.S.O. | Abbott Armand Jean le Bouthillier de Rancé | Benedictine | 1664 |
| Trinitarians (Order of the Most Holy Trinity for the Redemption of the Captives) | O.S.S.T. | St. John of Matha | Trinitarian | Late 12th century |
| Trinitarian Sisters of Valence (Congregation Sisters of the Most Holy Trinity) | C.S.S.T. | Four women from Saint-Nizier-de-Fornas | Trinitarian | 1660 |
| Trinitarians of Mary | | Mother Lillie | Trinitarian | 1992 |
| U |||||
| Union of St. Catherine of Siena, India | M.D.S. | | | |
| Ursuline Franciscan Sisters | U.F.S. | | Ursuline, Franciscan | |
| Ursuline Sisters (Society of St. Ursula) | S.U. | | Ursuline | |
| Ursuline Sisters (Company of St. Ursula) | O.S.U. | St. Angela Merici | Ursuline | 1535 |
| Ursuline Sisters of Bruno | O.S.U. | | Ursuline | |
| Ursuline Sisters of Prelate | O.S.U. | Fr. Joseph Riedinger | Ursuline | 1919 |
| Ursuline Sisters of Somasca | U.S.S. | | Ursuline | |
| Ursuline Sisters of Tildonk | O.S.U. | | Ursuline | |
| Ursuline Sisters of the Blessed Virgin Mary | O.S.V. | | Ursuline | |
| Ursulines of Jesus | U.J. | | Ursuline | |
| Ursulines of Mary Immaculate | U.M.I. | | Ursuline | |
| Ursuline Nuns (Order of St. Ursula) | O.S.U. | St. Angela Merici | Ursuline | 1535 |
| V |||||
| Vallumbrosan Order | | St. John Gualbert | Benedictine | 11th century |
| Venerini Sisters (Religious Teachers Venerini) | M.P.V. | St. Rose Venerini | | 1685 |
| Verbum Dei Missionary Fraternity | M.V.D.F. | Fr. Jaime Bonet | | 1963 |
| Viatorians (Clerics of Saint Viator) | C.S.V. | Fr. Louis Querbes | | 1831 |
| Victory Noll Sisters | O.L.V.M. | | | |
| Visitation Sisters (Order of the Visitation of Holy Mary, Visitandines) | V.H.M. | St. Francis de SalesSt. Jane Frances de Chantal | Salesian | 1610 |
| Visitation Sisters (Sisters of the Visitation Congregation of the Blessed Virgin Mary) | S.V.M. | | Vincentian-Setonian | |
| Visitation Sisters of Don Bosco | V.S.D.B. | | | |
| Vocationist Fathers (Society of Divine Vocations) | S.D.V. | | | |
| Virgo Flos Carmeli | E.P. | Msgr. João Scognamiglio Clá Dias | Heralds of the Gospel | 2005 |
| W |||||
| White Sisters (Missionary Sisters of Our Lady of Africa) | M.S.O.L.A. | Cardinal Charles Lavigerie | Missionaries of Africa | 1869 |
| Work of Mary Mediatrix (Opus Mariae Mediatricis) | O.M.M. | | | |
| Workers of the Kingdom of Christ | C.O.R.C. | Bishop Enrique Amezcua MedinaBishop José Abraham Martínez BetancourtArchbishop Manuel Pío López Estrada | | 1963 |
| X |||||
| Xaverian Brothers (Congregation of St. Francis Xavier) | C.F.X. | Br. Theodore Ryken | Xaverian | 1839 |
| Xaverian Missionaries (Pious Society of St. Francis Xavier for Foreign Missions) | S.X. | St. Guido Maria Conforti | Xaverian | 1895 |
| Xaverian Missionaries of Yarumal | M.X.Y. | | Xaverian | |
| Xaverian Missionary Sisters of Mary (Missionary Society of Mary) | S.X. | Fr. James SpagnoloVen. Celestina Bottego | Xaverian | 1898 |
| Z |||||
| Zirc Cistercian Congregation | O.S.B. | | Benedictine | 1923 |