Surname Вадаш (Vadas 
, Вадаш 
) , all around the world, is quite a rare cognomen. The surname Вадаш is characteristic of Hungary, where it is quite a common surname, Croatia, where it is quite a rare surname, and Romania. Measured by absolute frequency, this name is the most popular in Hungary, India, and the United States. Much less frequently, Вадаш is the forename as well as the last name.