M
- Kaarlo Naaminka (1980 airmail)
- Nelson Mandela (1995)
- Édouard Manet (1982 airmail)
- Jacques Marchand (1971 airmail)
- Guglielmo Marconi (1995)
- George Marshall (1996)
- Alphonse Massamba-Débat (1964 airmail)
- Juan Mates (1968 airmail)
- Ange M'ba (1975)
- Léon M'ba (1959)
- Jean Mermoz (1980 airmail)
- Frédéric Mistral (1995)
- Claude Monet (1974 airmail)
- Étienne Montgolfier (1973)
- Joseph-Michel Montgolfier (1973)
- Luis de Morales (1968 airmail)
- Daniel Morelon (1972 airmail)
- Rudolf L. Mossbauer (1995)
- H. Moundounga (1996) painter
- John Mugabi (1980 airmail)
- Bartolomé Esteban Murillo (1968 airmail)
- Alfred de Musset (1982)
Read more about this topic: List Of People On Stamps Of Gabon