Cognomen Gulbai (Гулбай 
, Gulbai 
) , in all the world, is a rare family name. The family name Gulbai is habitual in Kyrgyzstan, where it is quite a rare surname, Georgia, where it is a very rare surname, and India, where it is an extremely rare surname. More frequently, Gulbai is the forename as well as the last name.