- Marcial Lapp
- Marco Bijvank
- Marco Hendriks
- Marco Pavone
- Marco Premoli
- Marco Scarsini
- Marco Shaojun Qin
- Marco Slikker
- Marco Tortoriello
- Marco Trubian
- Marco Zaider
- Marcos Goycoolea
- Margaret Ajuwon
- Margaret L. Brandeau
- Margaret S. Trench
- Margaret Tobey
- Margarita Paz Castro
- Margarita Protopappa-Sieke
- Margo Seltzer
- Mari Ida Sotomayor
