- Holborn, Hajo1
- Hollós, Ervin1
- Horne, Alistair1
- Hough, Jerry F.1
- Huberman, Leo1
- Institut zur Erforschung der UdSSR1
- Jacobs, Jane1
- Jakobson, Max1
- Jones, Robert Huhn1
- Joshua, Wynfred1
- Kalinowski, Franciszek1
- Kaplan, Morton A.1
- Katkov, George1
- Kazakov, Anatolii Pavlovich1
- Kennell, Ruth Epperson1
- Kissinger, Henry1
- Kliuchevskii, Vasilii Osipovich1
- Kniazhinskii, V. B.1
- Komlós, János1
- Korbonski, Andrzej1