- Mary Kate Stimmler
- Mary Lizbeth Rojas
- Mary R. DeMelim
- Mary Tripsas
- Mary Zellmer-Bruhn
- Mary-Hunter McDonnell
- Maryam Alavi
- Maryam Alimohammadi
- Maryam Daryalal
- Maryam Hamidi
- Maryam Kheirandish
- Masakazu Ishihara
- Masakazu Kojima
- Masha Shunko
- Mason Samuels
- Masoud Talebian
- Massachusetts Institute of Technology
- Massachusetts Institute of Technology Student Chapter
- Massimo Marinacci
- Massimo Tavoni
