Cognomen Gazii (Gazii 
, Газий 
) , in all the world, is a very rare last name. The cognomen Gazii is habitual in Slovakia, where it is a rare surname, Kazakhstan, where it is a very rare surname, and Russia, where it is an extremely rare surname. Measured by absolute frequency, it is the most numerous in Slovakia, India, and Russia. Very seldom, Gazii is the forename as well as the last name.