Encyclopedias, Almanacs, Transcripts, and Maps
- Molina, Dr. Mario Jose (1943 – ) Mexican Chemist
- moment of force
- Monarch Butterfly
- Monarch Flycatchers (Monarchidae)
- Monasticism: An Overview
- Monasticism: Buddhist Monasticism
- Monasticism: Christian Monasticism
- Mongol Religions
- mongolism
- Mongooses and Fossa (Herpestidae)
- Monitors, Goannas, and Earless Monitors (Varanidae)
- Monk, Thelonious Sphere
- Monkey-Wrenching
- Monkeys
- Mono Lake
- Monoblastozoa (Salinella)
- Monogenea (Monogeneans)
- monomer
- Monoplacophora (Monoplacophorans)
- Monotremata (Monotremes)