Kozin (, from коза meaning female goat) is a Russian masculine surname. Its Russian feminine counterpart is Kozina, while in other Slavic countries Kozina is also a masculine surname. It may refer to:
Alexey Kozin (1976-1999), Russian military officer killed in War of Dagestan and posthumous Hero of the Russian Federation Nestor Kozin (1902-1992), Red Army Major general and Hero of the Soviet Union Vadim Kozin (1903–1994), Russian tenor singer Valentin Kozin (born 1940), Soviet hockey player Viktor Kozin (born 1953), a Russian naval engineer Yury Kozin (born 1948), Russian weightlifter
See also Kozina (surname) Kozhin