Encyclopedias, Almanacs, Transcripts, and Maps
- Marie de l'Incarnation, Bl.
- Marie Martin de l'Incarnation, Bl.
- Marienbad
- Marienberg, Abbey of
- Marijampole
- Maril, Herman
- Marín-Sola, Francisco
- Marini, Shabbethai Ḥayyim
- Marinoff, Jacob
- Marinus I, Pope
- Marinus II, Pope
- Marinus, Ss.
- Mariology
- Marion-Brésillac, Melchior Marie Joseph de
- Marist Brothers
- Marist Fathers
- Marist Missionary Sisters
- Marist Sisters
- Maritain, Jacques (1882–1973) and Raïssa° (1883–1960)
- Maritain, Raïssa Oumansoff