- IAitskii, A.1
- Jakubowski, Jan Zygmunt1
- Jouan, René1
- Jánossy, Ilona1
- Katz, Henryk1
- Khudobin, Dimentii1
- Kokorin, N. S.1
- Kolozsvári-Grandpierre, Emil1
- Korcsmáros, Pál1
- Kostrov, A.1
- Krasilshchikov, V.1
- Kristol, Irving1
- Kristóf, S. Pál1
- Krugliak, Galina1
- Kutscher, Hans1
- Langer, Paul Fritz1
- Lasky, Melvin J.1
- Legowicz, Jan1
- Leonid, Ashikhmin1
- Lovas, György1