Surname Мусай (Musai 
, Musay 
, Мусай 
) , in all the world, is quite a rare cognomen. The family name Мусай is characteristic of Albania, where it is quite a common surname, Kosovo, and Slovenia, where it is quite a rare surname. Not in comparison with a country's population, this name is the most popular in Albania, Kosovo, and India. Likewise, Мусай is the forename as well as the last name.