Encyclopedias, Almanacs, Transcripts, and Maps
- Media and Religion
- Medical Ethics
- medieval music
- Mediterranean Fruit Fly
- Meegeren, Hans van
- megabyte
- Megalithic Religion
- Megalithic Religion: Historical Cultures
- Megalithic Religion: Prehistoric Evidence
- Megaloptera (Dobsonflies, Fishflies, and Alderflies)
- Megawatt (MW)
- Meiji, Mutsohito
- Meitner, Lise (1878–1968)
- Melanesian Religions
- Melanesian Religions: An Overview
- Melanesian Religions: Mythic Themes
- Melqart
- Memorization
- Men's Studies in Religion
- Mendicancy