- Jasny, Naum1
- Jelavich, Charles1
- Joffe, Ellis1
- Johnson, Harry G.1
- Johnson, Haynes1
- Kaser, Michael Charles1
- Kerensky, Aleksandr Fyodorovich1
- Klenovskii, Dmitrii I.1
- Klibanov, Aleksandr Il'ich1
- Konichev, Konstantin Ivanovich1
- Korol, Alexander G.1
- Kostiukov, Ivan Vasil'evich1
- Kousoulas, D. George1
- Kozlov, Ivan1
- Kukiel, Marian1
- Kwapiński, Jan1
- Kádár, János1
- Köhler, Heinz1
- Lashin, Anatolii Grigorʹevich1
- Lewytzkyj, Borys1