Surname Гумай (Gumay 
, Gumai 
, Gumaj ) , in the world, is quite a common last name. The family name Гумай is characteristic of Indonesia, where it is quite a rare surname, Georgia, where it is a rare surname, and Philippines. Not in comparison with a country's population, it most frequently occurs in Indonesia, India, and Philippines. Much less frequently, Гумай is the forename as well as the last name.