Cognomen Gidak (Gidak 
) , worldwide, is a rare family name. The surname Gidak is habitual in Turkey, where it is a rare surname, Croatia, where it is a very rare surname, and Canada, where it is an extremely rare surname. Measured by absolute frequency, it most frequently occurs in Turkey, India, and the United States. Very seldom, Gidak is the forename as well as the last name.