M
- Rodrigo Arias Maldonado (1924)
- Luis Molina (1957)
- Alberto M. Brenes Mora (1976)
- Jose Joaquin Mora (1957, 1984)
- Juan Rafael Mora (1901, 1907, 1921, 1931, 1943, 1957, 1984)
- Francisco Morazán (1943)
- Mohandas Karamchand Gandhi, Leader of India's Independence Movement (1998)
Read more about this topic: List Of People On Stamps Of Costa Rica