- Jasny, Naum1
- Jean Rouch1
- Jelavich, Charles1
- Joffe, Ellis1
- Johnson, Harry G.1
- Johnson, Haynes1
- Judit, Miklósy1
- Kadár, Ján1
- Karmen, Roman1
- Kaser, Michael Charles1
- Kemény, István1
- Kerensky, Aleksandr Fyodorovich1
- Kimyagarov, Boris1
- Király, Béla1
- Kiss, Béla1
- Klenovskii, Dmitrii I.1
- Klibanov, Aleksandr Il'ich1
- Klos, Elmar1
- Kolko, Gabriel1
- Konichev, Konstantin Ivanovich1