Encyclopedias, Almanacs, Transcripts, and Maps
- Mannhardt, Wilhelm
- Mansell, Nigel
- mantissa
- Mantodea (Mantids)
- Mantophasmatodea (Heel-Walkers or Gladiators)
- Maponos
- Mappō
- Mapuche Religion
- Mar pa
- Māra (and Great Mothers)
- Maranke, John
- Marathi Religions
- Marathon, Battle of
- Marcionism
- Mardu Religion
- Mare, Walte de la
- Marett, R. R.
- Mari and Mordvin Religion
- Mariculture
- Marine Archaeology