- Keefer, Scott1
- Khmelʹnytsʹkyĭ, Bohdan1
- Komissarenko, Sergei1
- Konrád, György1
- Kopelev, Lev1
- Korolev, Sergei1
- Kravchuk, L. M.1
- Krenz, Egon1
- Kurchatov, Igor1
- Kéthly, Anna1
- Lablonskaia, Tatiana1
- Lenin, Vladimir Ilʹich1
- Lifar, Serge1
- Luk'ianenko, Levko1
- Lunev, Afanasii1
- Magyar, Bálint1
- Medgyessy, Péter1
- Moroz, Valentyn IAkovych1
- Morozova, Olga1
- Mándi, Endre1