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Surname Hajas (Hajas , Гаяс ) , around the globe, is quite a rare family name. The cognomen Hajas is habitual in Eastern Europe, particularly Hungary, where it is quite a common surname, Slovakia, where it is quite a rare surname, and Romania, where it is a rare surname. In absolute terms, this name is the most popular in Hungary, Slovakia, and Philippines. Much less frequently, Hajas is the forename as well as the last name.