Cognomen Пахай (Pahai 
, Пахай 
, Pahaj ) , all over the world, is a rare family name. The surname Пахай is characteristic of Ukraine, where it is a rare surname, Thailand, where it is an extremely rare surname, and Russia. In absolute terms, this name is the most popular in Ukraine, India, and Russia. Likewise, Пахай is the forename as well as the last name.