Last name Kozyn (Козин , Kozyn ) , all around the world, is a common family name. The surname Kozyn is habitual in Russia, where it is quite a rare surname, Belarus, and Kazakhstan.
Козын, and קוזין
Adva, Harriet, Kaitlyn, Brandon, Barbara, Stephen, Olenka, Thomas, Robert, Martin, Frans, Frank, Henry, Diane, Kathy, Beryl, Sarah, John, Barb, Cole, Stefanie, and Christina
, Kozyn 
) , all around the world, is a common family name. The surname Kozyn is habitual in Russia, where it is quite a rare surname, Belarus, and Kazakhstan.