Family name Gyya (Гииа , Gyya ) , in all the world, is an extremely rare surname. Much more frequently, Gyya is the forename as well as the last name.
Гия, Гыя, and גייא
Turner, and Fadhel
, Gyya 
) , in all the world, is an extremely rare surname. Much more frequently, Gyya is the forename as well as the last name.