Family name زاك (Zak 
, Zach , Zack 
) , across the world, is a common cognomen. The cognomen زاك is characteristic of Slovakia, where it is a common surname, Czechia, where it is quite a common surname, and Austria (explore the name in all countries). Measured by absolute frequency, it is the most numerous in the United States, Poland, and Slovakia. Also, زاك is the forename as well as the last name.