Family name Kozyev (Козиев 
, Kozyev, Козыев ) , all over the world, is a rare surname. The family name Kozyev is habitual in Central Asia, particularly Kyrgyzstan, where it is quite a rare surname, Tajikistan, and Kazakhstan, where it is a rare surname. Measured by absolute frequency, it is commonest in Russia, Kyrgyzstan, and Tajikistan.