Encyclopedias, Almanacs, Transcripts, and Maps
- Meagher, Paul Kevin
- Mears, Otto
- Meaux (Melsa), Abbey of
- Mechanism, Biological
- Mechitar
- Mechitarists
- Mechoulam, Raphael
- Mechtild of Hackeborn, St.
- Mechtild of Magdeburg
- Mecklenburg
- Medalie, George Zerdin
- Medalists
- Medals, Religious
- Médard of Noyon, St.
- Medeiros, Humberto Sousa
- Medellín Documents
- Medem, Vladimir
- Medes
- Medes and Media
- Mediator Dei