- Gumilev, N.1
- Gábor, Róbert1
- Günther, Oskar Eugen1
- Henderson, H. W.1
- Historical Archives of the Hungarian State Security1
- Hoffer, Eric1
- Homburg, Wilhelm von1
- Hook, Sidney1
- Hornung, Julius Lawrence1
- Horváth, Márton1
- Hu, Qiaomu1
- Information Services Department1
- Jasny, Naum1
- Jouvenel, Renaud de1
- Judit, Miklósy1
- Juhasz, Vilmos1
- Kaps, Johannes1
- Kelly, Marie Noële1
- Kemény, István1
- Kennan, George F.1