- Ilku, Pál1
- Kautsky, Karl1
- Kennedy, John F.1
- Kiss, Sándor, 1918-1
- Kodály, Zoltán,1
- Kommunisticheskaia partiia Sovetskogo Soiuza1
- Károlyi, Antal1
- Kéthly, Anna, 1889-19761
- Lednicki, Waclaw1
- Lelotte, Fernand1
- Lenin, Vladimir Il'ich1
- Lenin, Vladimir Ilʹich,1
- Lodge, Henry Cabot, 1902-19851
- Lukács, György1
- Marinisheva, Valeriia1
- Marx, Karl,1
- Mayakovsky, Vladimir1
- Mazepa, Ivan Stepanovych1
- Meshkov, Vladimir1
- Metsaik, Konstantin1