- International Commission of Jurists (1952- )1
- Ivens, Joris1
- Jasny, Naum1
- Jones, Gwyn Owain1
- Judit, Miklósy1
- Jūra, Klemensas1
- Kalatozov, Mikhail1
- Kampelman, Max M.1
- Karabasz, Kazimierz1
- Kemény, István1
- Kennedy, Malcolm Duncan1
- Király, Béla1
- Kisjókai, Erzsébet1
- Kiss, Béla1
- Kissinger, Henry1
- Knight, Frank H.1
- Korol, Alexander G.1
- Kozʹmin, B. P.1
- Kulidzhanov, Lev1
- Kuśmierek, Józef1