Malo (Maclou). November 15. Patron of St. Malo, France (died 627).
Margaret. July 20. One of the patrons of Cremona and of women in childbirth (died fourth century).
Mark. April 25. Evangelist (died 68).
Martha of Bethany. July 29. Patroness of cooks and housewives (died 84).
Martin of Tours. November 11, Martinmas. Patron of Tours and of beggars, tavern-keepers and wine-growers (316–397).
Mary Magdalene. July 22. Patroness of Provence and of Marseilles as well as of penitent fallen women.
Matthias. February 24.
Maurice. September 22. Patron of Austria, Savoy, Mantua, and of foot-soldiers (fourth century).
Michael. September 29. Archangel.
Nicholas. December 6. Archbishop of Myra in Lycia, patron of Russia, and especially of serfs and serfdom (died 342).