Family name Kulyay (Куляй 
, Kulyay 
) , in the entire world, is a rare cognomen. The surname Kulyay is characteristic of Belarus, where it is quite a rare surname, Kyrgyzstan, where it is a rare surname, and Algeria, where it is a very rare surname. In absolute terms, it is commonest in Belarus, Russia, and Algeria. More frequently, Kulyay is the forename as well as the last name.