Last name Gadz (Gadz 
, Гадз 
) , in the world, is a very rare cognomen. The last name Gadz is habitual in Ukraine, where it is a rare surname, Russia, where it is an extremely rare surname, and Philippines. Not in comparison with a country's population, the name is most common in Ukraine, the United States, and Russia. Very seldom, Gadz is the forename as well as the last name.