- Markush structure
- Markus Lüpertz
- Marlene Dietrich
- Marlinski
- Marlon Brando
- Marmas
- marmosets and tamarins
- Marne
- Marnyi Stone
- Marok Kotsiubynsky
- Maroni River
- Maronites
- Maroon War
- Maroua
- Maroun an-Naqqash
- Marprelate Controversy
- Marquardt
- marquenching
- Marquesas Islands
- Marquess of Robert Arthur Talbot Gascoyne-Cecil Salisbury
- Marquis Chao's Son Stele Remnant
- Marquis de Condorcet
- Marquis test
- Marquis' Tomb of Western Han Dynasty
- Marrakech