All around the world, Rehas (Regia 
, Rejas 
, Rehas ) is quite a common unisex forename. The first name Rehas is habitual in Brazil, where it is quite a rare feminine name, Laos, where it is a rare feminine name, and Israel. Measured by absolute frequency, it is commonest in Brazil, Indonesia, and India. Also, Rehas is the last name as well as the forename.