Cognomen Kostay (Kostay ) , all over the world, is an extremely rare last name. Much more prevalently, Kostay is the forename as well as the last name.
Костай, Костаы, and קושטאי
Andreev, and Yakunin
) , all over the world, is an extremely rare last name. Much more prevalently, Kostay is the forename as well as the last name.