- Korol, Alexander G.1
- Kostiukov, Ivan Vasil'evich1
- Kousoulas, D. George1
- Kozlov, Ivan1
- Krassó, György1
- Krislov, Samuel1
- Kristl, Vlado1
- Kuhn, Isobel1
- Kukiel, Marian1
- Kwapiński, Jan1
- Kádár, János1
- Köhler, Heinz1
- Lashin, Anatolii Grigorʹevich1
- Lewytzkyj, Borys1
- Librach, Jan1
- Lorenz, Richard1
- Lucas, Christopher1
- Lunacharsky, Anatoly Vasilievich1
- Lysenko, Yurii1
- Lányi, Ernőné1