Around the world, دياك (Deak 
, Deac 
, Diak 
) is a rare gender-neutral first name. The forename دياك is characteristic of Romania, where it is quite a rare unisex name, Hungary, where it is a rare unisex name, and Indonesia, where it is a very rare male name. Measured by absolute frequency, it is commonest in Romania, Indonesia, and India. More prevalently, دياك is the last name as well as the forename.