Religion: 89 holidays
January
- January 7 · Orthodox Christmas
- January 9 · Ebisu Festival
- January 14 · Pongal Harvest Festival in India
- January 18 · World Religion Day
- January 20 · San Sebastián Tamborrada
- January 25 · Tatiana Day — Russian Students' Day
- January 31 · Saint Sarkis Day
February
- February 1 · Apokries — Greek Carnival
- February 1 · World Interfaith Harmony Week
- February 1 · World Hijab Day
- February 2 · Tu BiShvat (New Year for Trees)
- February 3 · Setsubun
- February 4 · International Day of Human Fraternity
- February 11 · World Day of the Sick
- February 12 · Vardanants Day
- February 15 · Fastelavn in Norway
- February 16 · Maslenitsa
- February 17 · Mardi Gras
- February 18 · Ash Wednesday
- February 18 · Winter Troyan
- February 22 · Perfume Pagoda Festival
- February 23 · Beginning of Orthodox Great Lent
March
- March 1 · St David's Day
- March 2 · Beginning of the Bahá’í Fast
- March 14 · Orthodox Book Day
- March 15 · Mothering Sunday
- March 16 · Fast of Days of Sorrow and Weeping
- March 17 · St Patrick's Day
- March 22 · Soroki, the Festival of Larks
- March 30 · Ladodenie
April
- April 7 · Motherhood and Beauty Day in Armenia
- April 8 · Hana Matsuri Flower Festival in Japan
- April 23 · Sant Jordi — Catalonia's Day of Love
- April 26 · Hung Kings Commemoration Day
May
- May 1 · Beltane
- May 3 · Blessing of the Bicycles in the United States
- May 11 · Royal Ploughing Ceremony in Thailand
- May 21 · Pirovasia: Fire Walking in Greece
- May 21 · Predoy in Bulgaria
- May 24 · Buddha's Birthday in South Korea
- May 24 · Slavic Literacy and Culture Day
June
- June 8 · Beginning of the Apostles' Fast
- June 23 · St John's Eve (Midsummer Eve)
- June 23 · Beginning of the Dog Days Fast
- June 24 · Inti Raymi in Peru
July
- July 2 · Fast of the Seventeenth of Tammuz
- July 6 · Birthday of the Dalai Lama
- July 6 · San Fermín Festival in Pamplona
- July 7 · Ivan Kupala
- July 8 · Day of Family, Love and Fidelity in Russia
- July 15 · St Swithin's Day
- July 23 · Tisha B'Av
- July 29 · Saint Olaf's Day
August
- August 1 · Lammas / Lughnasadh
- August 14 · Beginning of the Dormition Fast
- August 16 · Palio di Siena
- August 20 · Saint Stephen's Day in Hungary
- August 22 · Day Commemorating Victims of Violence Based on Religion or Belief
- August 26 · Onam Festival in India
September
- September 7 · Florence Lantern Festival
- September 7 · Piedigrotta Festival in Italy
- September 14 · Fast of Gedaliah
- September 20 · Fast Before Sadeh
- September 23 · Autumn Equinox Day in Japan
- September 28 · St. Wenceslas Day — Czech Statehood Day
October
- October 4 · Harvest Thanksgiving in Germany
- October 10 · Targmanchats, the Feast of the Holy Translators
- October 18 · Britain's Horned God Day
- October 18 · Kirmes in Germany
- October 19 · Señor de Luren Festival in Peru
- October 31 · Karva Chauth in India
- October 31 · Winter Nights
November
- November 1 · Day of the Dead in Mexico
- November 4 · Anniversary of the Enthronement of Karekin II, Catholicos of All Armenians
- November 9 · Diwali in India
- November 10 · Mokosh Day
- November 15 · Shichi-Go-San — Children's Festival in Japan
- November 21 · Hellenic Armed Forces Day
- November 22 · Saint Cecilia's Day in Mexico
- November 24 · Guru Nanak Jayanti
- November 28 · Start of the Nativity Fast
- November 28 · Pilipovka in Belarus
- November 29 · International Bible Day