- IAroslavskii, Emelʹian1
- Index on Censorship1
- Information Services Department1
- Instytut istoriï partiï (Ukraine)1
- International Congress of Jurists1
- Irkutskaia Studiia Kinokhroniki1
- Iversen, Robert W.1
- Iwaniuk, Wacław1
- Judit, Miklósy1
- Kalatozov, Mikhail1
- Karabasz, Kazimierz1
- Karavaev, Gennadii Georgievich1
- Kartashev, Anton Vladimirovich1
- Kautsky, Karl1
- Kemény, István1
- Khaitsman, V. M.1
- Khittl, Ferdinand1
- Khrushchev, Nikita Sergeevich1
- Király, Béla1
- Kiss, Béla1