Family name Lyov (Лев 
, Lyov 
) , all around the world, is quite a rare cognomen. The surname Lyov is habitual in Armenia, where it is quite a rare surname, Kyrgyzstan, and Ukraine. Measured by absolute frequency, it is commonest in Eastern Europe, particularly Russia, Ukraine, and Belarus. Much more prevalently, Lyov is the forename as well as the last name.