Encyclopedias, Almanacs, Transcripts, and Maps
- Mara Salvatrucha, La
 - Mara, Wellington Timothy (“Duke”)
 - Maracatu
 - Maradona, Diego Armando (1960–)
 - Marajó Island
 - Marajoara
 - Maranao
 - Maranao
 - Maranhão
 - Maranhão, Estado do
 - Marañón River
 - Marathons
 - Maravich, Peter Press ("Pete")
 - Marblehead Pact (1906)
 - Marcel, Gabriel (1889–1973)
 - Marcelin Brothers
 - Marcello, Carlos
 - March of the Empty Pots
 - Marcha
 - Marcha de los Cuatro Suyos
 
