- March 1: St. David of Wales – Christian
- March 2-20: Nineteen Day Fast – Baha’i
- March 7: Meatfare Sunday –Orthodox Christian
- March 10: Lailat al Miraj – Islam
- March 12: Orthodox Sunday – Orthodox Christian
- March 12: Maha Shivaratri – Hindu
- March 14: Cheesefare Sunday – Orthodox Christian
- March 15: Clean Monday (Great Lent begins) – Orthodox Christian
- March 17: St. Patrick’s Day – Christian
- March 18: Waqf al Arafa – Islam
- March 19: St. Joseph’s Day – Christian
- March 21: Norooz (New Year) – Persian/Zoroastrian
- March 21: Naw-Rúz (New Year) – Baha’i
- March 21: Ostara – Mabon * – Wicca/Neo Pagan Northern and Southern hemispheres
- March 21: Orthodox Sunday – Orthodox Christian
- March 25: Annunciation of the Blessed Virgin Mary – Catholic Christian
- March 25: Mahavir Jayanti – Jain
- March 26: Khordad Sal (Birth of Prophet Zaranthushtra) Zoroastrian
- March 28: Lailat al Bara’ah – Islam
- March 28: Lord’s Evening Meal – Jehovah’s Witness Christian
- March 28: Magha Puja Day – Buddhist
- March 28 – April 8: Pesach – Jewish
- March 28: Palm Sunday – Christian
- March 29: Holi – Hindu
