January instance of calendar month
Fixed observances
December 25 – January 5: Twelve Days of Christmas (Western Christianity)
December 26 – January 1: Kwanzaa (African Americans)
December 31 – January 1, in some cases until January 2: Hogmanay (Scotland)
January 1
Feast of the Circumcision of Christ
Feast of the Holy Name of Jesus (Anglican Communion, Lutheran Church)
Feast of Fools (Medieval Europe)
Constitution Day (Italy)
Dissolution of Czechoslovakia-related observances:
Day of the Establishment of the Slovak Republic (Slovakia)
Restoration Day of the Independent Czech State (Czech Republic)
Euro Day (European Union)
Flag Day (Lithuania)
Founding Day (Taiwan)
Global Family Day
Independence Day (Brunei, Cameroon, Haiti, Sudan)
International Nepali Dhoti and Nepali Topi Day
Jump-up Day (Montserrat, British Overseas Territories)
Kalpataru Day (Ramakrishna Movement)
National Bloody Mary Day (United States)
National Tree Planting Day (Tanzania)
New Year's Day
Japanese New Year
Novy God Day (Russia)
Sjoogwachi (Okinawa Islands)
Polar Bear Swim Day (Canada and United States)
Public Domain Day (multiple countries)
Solemnity of Mary, Mother of God (Catholic Church)
World Day of Peace
Triumph of the Revolution (Cuba)
January 2
Ancestry Day (Haiti)
Berchtold's Day (Liechtenstein, Switzerland, and the Alsace)
Carnival Day (Saint Kitts and Nevis)
Happy Mew Year For Cats Day (Thomas Roy)
Kakizome (Japan)
National Creampuff Day (United States)
National Science Fiction Day (United States)
The second day of New Year (a holiday in Armenia, Kazakhstan, North Macedonia, Mauritius, Montenegro, New Zealand, Romania, Russia, Switzerland, and Ukraine)
Nyinlong (Bhutan)
Victory of Armed Forces Day (Cuba)
January 3
Anniversary of the 1966 Coup d’état (Burkina Faso)
Memento Mori (Thomas Roy)
Nakhatsenendyan toner (Armenia): January 3–5
Ministry of Religious Affairs Day (Indonesia)
National Chocolate Covered Cherry Day (United States)
Tamaseseri Festival (Hakozaki Shrine, Fukuoka, Japan)
January 4
Day of the Fallen against the Colonial Repression (Angola)
Day of the Martyrs (Democratic Republic of the Congo)
Dimpled Chad Day (Thomas Roy)
Hwinukan mukee (Okinawa Islands, Japan)
Independence Day (Myanmar)
Ogoni Day (Movement for the Survival of the Ogoni People)
World Braille Day
January 5
National Bird Day (United States)
National Whipped Cream Day (United States)
Sausage Day (United Kingdom)
Strawberry day (Japan)
Take Our Daughters and Sons to Work Day (Sydney, Melbourne, and Brisbane, Australia)
Tucindan (Serbia, Montenegro)
January 6
Armed Forces Day (Iraq)
Epiphany or Three Kings' Day (Western Christianity) or Theophany (Eastern Christianity), and its related observances:
Befana Day (Italy)
Christmas (Armenian Apostolic Church)
Christmas Eve (Russia)
Christmas Eve (Ukraine)
Christmas Eve (Bosnia and Herzegovina)
Christmas Eve (North Macedonia)
Little Christmas (Ireland)
Þrettándinn (Iceland)
Three Wise Men Day
Pathet Lao Day (Laos)
January 7
Christmas (Eastern Orthodox Churches and Oriental Orthodox Churches using the Julian Calendar, Rastafari)
Christmas in Russia
Christmas in Ukraine
Christmas (Bosnia and Herzegovina)
Remembrance Day of the Dead (Armenia)
Distaff Day (Medieval Europe)
Nanakusa no sekku (Japan)
Pioneer's Day (Liberia)
Tricolour day (Italy)
Victory from Genocide Day (Cambodia)
January 8
Show and Tell Day at Work (Thomas Roy)
The Eighth (United States) (defunct observance)
Typing Day (international observance)
January 9
Start of Hōonkō (Nishi Honganji) January 9–16 (Jōdo Shinshū Buddhism)
Martyrs' Day (Panama)
National Cassoulet Day (United States)
Non-Resident Indian Day (India)
Republic Day (Republika Srpska) (defunct, declared unconstitutional by the Constitutional Court of Bosnia and Herzegovina)
St. Stephen's Day (Eastern Orthodox)
January 10
Fête du Vodoun (Benin)
Majority Rule Day (Bahamas)
January 11
Children's Day (Tunisia)
Eugenio María de Hostos Day (Puerto Rico)
German Apples Day (Germany)
Independence Manifesto Day (Morocco)
Kagami biraki (Japan)
National Human Trafficking Awareness Day (United States)
Republic Day (Albania)
January 12
Memorial Day (Turkmenistan)
Prosecutor General's Day (Russia)
National Youth Day (India)
Zanzibar Revolution Day (Tanzania)
January 13
Constitution Day (Mongolia)
Democracy Day (Cape Verde)
Liberation Day (Togo)
Old New Year's Eve (Russia, Belarus, Ukraine, Serbia, Montenegro, Republic of Srpska, North Macedonia), and its related observances:
Malanka (Ukraine, Russia, Belarus)
St. Knut's Day (Sweden and Finland)
Stephen Foster Memorial Day (United States)
January 14
Azhyrnykhua (Abkhazia)
Day of Defenders of the Motherland (Uzbekistan)
Feast of Divina Pastora (Barquisimeto)
Feast of the Ass (Medieval Christianity)
Flag Day (Georgia)
National Forest Conservation Day (Thailand)
Ratification Day (United States)
Revolution and Youth Day (Tunisia)
Yennayer (Berbers)
January 15
Arbor Day (Egypt)
Armed Forces Day (Nigeria)
Indian Army Day (India)
John Chilembwe Day (Malawi)
Korean Alphabet Day (North Korea)
Sagichō at Tsurugaoka Hachimangū (Kamakura, Japan)
Teacher's Day (Venezuela)
Wikipedia Day (international observance)
January 16
National Nothing Day (Thomas Roy)
National Religious Freedom Day (United States)
Solemnity of Mary, Mother of God (Coptic Church)
Teacher's Day (Myanmar)
Teachers' Day (Thailand)
Zuuruku Nichi (Okinawa Islands, Japan)
Thiruvalluvar Day (Tamil Nadu, India)
January 17
Hardware Freedom Day (international observance)
Judgement Day
National Day (Menorca)
The opening ceremony of Patras Carnival, celebrated until Clean Monday (Patras)
January 18
Revolution and Youth Day (Tunisia)
Royal Thai Armed Forces Day (Thailand)
Week of Prayer for Christian Unity (January 18–25) (Christianity)
January 19
Confederate Heroes Day (Texas), and its related observance:
Robert E. Lee Day (Alabama, Arkansas, Florida, Georgia and Mississippi)
Lee–Jackson–King Day (Virginia, United States, defunct)
Husband's Day (Iceland)
Kokborok Day (Tripura, India)
National Popcorn Day (United States)
Theophany / Epiphany (Eastern and Oriental Orthodoxy), and its related observances:
Timkat, (on 20th during Leap Year) (Ethiopian Orthodox)
Vodici or Baptism of Jesus (North Macedonia)
January 20
Armed Forces Day (Mali)
Cheese Day (United States)
Heroes' Day (Cape Verde)
Inauguration Day, held every four years in odd-numbered years, except when January 20 falls on a Sunday (United States)
Martyrs' Day (Azerbaijan)
January 21
Babinden (Bulgaria, Serbia)
Birthday of Princess Ingrid Alexandra (Norway)
Errol Barrow Day (Barbados)
Flag Day (Quebec)
Grandmother's Day (Poland)
Lady of Altagracia Day (Dominican Republic)
Lincoln Alexander Day (Canada)
National Hug Day (United States)
January 22
Answer Your Cat's Question Day
Day of Unity of Ukraine (Ukraine)
Grandfather's Day (Poland)
National Hot Sauce Day (United States)
January 23
Bounty Day (Pitcairn Island)
Espousals of the Blessed Virgin Mary (Roman Catholic Church)
National Pie Day (United States)
Netaji Subhas Chandra Bose's Jayanti (Orissa, Tripura, and West Bengal, India)
Snow Plow Mailbox Hockey Day
World Freedom Day (Taiwan and South Korea)
January 24
Feast of Our Lady of Peace (Roman Catholic Church), and its related observances:
Feria de Alasitas (La Paz)
Moebius Syndrome Awareness Day (international observance)
National Peanut Butter Day (United States)
Unification Day (Romania)
January 25
2011 Revolution Day (Egypt)
A Room of One's Own Day
Burns night (Scotland, Scottish community)
Dydd Santes Dwynwen (Wales)
Feast of the Conversion of Saint Paul (Eastern Orthodox, Oriental Orthodox, Roman Catholic, Anglican and Lutheran churches, which concludes the Week of Prayer for Christian Unity)
National Police Day (Egypt)
National Voters' Day (India)
Tatiana Day (Russia, Eastern Orthodox)
January 26
Australia Day (Australia)
Duarte Day (Dominican Republic)
Engineer's Day (Panama)
International Customs Day
Liberation Day (Uganda)
Republic Day (India)
January 27
Day of the lifting of the siege of Leningrad (Russia)
Liberation of the remaining inmates of Auschwitz-related observances:
Holocaust Memorial Day (UK)
Holocaust Remembrance Day (Sweden)
International Holocaust Remembrance Day
Memorial Day (Italy)
Memorial Day for the Victims of the Holocaust and Prevention of Crimes against Humanity (Czech Republic)
Memorial Day for the Victims of National Socialism (Germany)
National Holocaust Memorial Day (Greece)
Family Literacy Day (Canada)
Feast of Saint Slava (Serbia)
National Chocolate Cake Day (United States)
Saint Devota's Day (Monaco)
January 28
Army Day (Armenia)
Data Privacy Day (international observance)
January 29
Kansas Day (Kansas, United States)
January 30
Day of Azerbaijani customs (Azerbaijan)
Day of Saudade (Brazil)
Fred Korematsu Day (California, United States)
Martyrdom of Mahatma Gandhi-related observances:
Martyrs' Day (India)
School Day of Non-violence and Peace (Spain)
Start of the Season for Nonviolence January 30 – April 4
National Inane Answering Message Day (United States)
Teacher's Day (Greece)
January 31
Amartithi (Meherabad, India, followers of Meher Baba)
Independence Day (Nauru)
Me-Dam-Me-Phi (Ahom people)
Street Children's Day (Austria)
type of example of manifestation of representation of