- Marie, Jean-Jacques1
- Marosán, György1
- Marquardt, Bernhard1
- Mason, David Stuart1
- Mattick, Paul1
- McCarthy, Margaret1
- McVey, Ruth Thomas1
- Medvedev, Roy Aleksandrovich1
- Merrick, Marion1
- Meyer, Hershel D.1
- Michálek, Slavomír1
- Mihajlov, Mihajlo1
- Mikhailov, Ivan1
- Miller, William J.1
- Mishalov, Iurii Ivanovich1
- Mitrany, David1
- Mohanty, Manoranjan1
- Molnár, Erik1
- Monnerot, Jules1
- Moraes, F. R.1