People of the Revolution and the USSR
- Nikolai Yakovlevich Marr Николай Яковлевич Марр Creator of the Japhetic theory who, as the sole Imperial academician to join the Communist Party, dominated Soviet linguistics for decades
- Zhores Alexandrovich Medvedev Жорес Александрович Медведев The dissident biologist who argued the archives contain no evidence Stalin planned a Jewish deportation
- Roy Alexandrovich Medvedev Рой Александрович Медведев The Marxist historian who put Stalinism on trial
- Merab Konstantinovich Mamardashvili Мераб Константинович Мамардашвили The philosopher who spoke consciousness aloud