- Lomax, William1
- Lotianu, Emil1
- Lotjanu, Emil1
- Mackiewicz, Józef1
- Mackintosh, Charles Henry1
- Magos, Gábor1
- Magos-Gimes, Judit1
- Magyar Szocialista Munkáspárt1
- Maloumian, Armand1
- Mandell, Richard D.1
- Mandelʹshtam, Nadezhda1
- Mansfield, Mike1
- Manuel, François1
- Mao, Zedong1
- Marchesini, Daniele1
- Marx, Karl1
- Mathieson, R. S.1
- Matějíček, Jaroslav1
- McGill, Dan Mays1
- McInnes, Neil1