Yan (Ian) Karlovich Berzin (Russian: ?? ???????? ??????; Latvian: Janis Berzinš; real name Peteris Kuzis; 25 November [O.S.
13 November 1889] 1889, Kreis Riga (now in Zaube parish), the Russian Empire – 29 July 1938, Moscow, the USSR), was a Soviet communist politician of Latvian ethnicity.