Encyclopedias, Almanacs, Transcripts, and Maps
- Mera, Juan León (1832–1894)
- Mercedarians
- Mercer, John Herndon ("Johnny")
- Mercier, Désiré Joseph (1851–1926)
- Mercurio Peruano
- Mercurio, El
- Meredith, James Howard
- Merello, Tita (1904–2002)
- Merengue
- Mereology
- Mérida, Carlos (1891–1984)
- Merino Castro, José Toribio (1915–1996)
- Merleau-Ponty, Maurice (1908–1961)
- Merovingian France
- Merovingian Franks
- Merriam, Eve
- Merrill, James Ingram
- Merton, Robert K(ing)
- Mesa da Consciência e Ordens
- Mesa, Carlos (1953–)