Encyclopedias, Almanacs, Transcripts, and Maps
- Mato Grosso do Sul
- Matres
- Matter and Energy
- Matthew the Evangelist
- Māturīdī, Al-
- Māui
- Maurya Empire
- Māwardī, Al-
- Mawdūdī, Sayyid Abū Al-Aʿlā
- Mawlid
- Mawu-Lisa
- Maximón
- Maximos the Confessor
- Maximum Permissible Concentration
- May beetle
- Maya Religion
- Mayan
- Mayer, Julius Robert (1814–1878)
- Mazarin, Jules, Cardinal
- Mazdakism