In the entire world, Костьян (Костьян ) is an extremely rare unknown gender first name. Much more frequently, Костьян is the last name as well as the forename.
Kostian, and Kostyan
Іван, Борис, Дмитро, Лариса, Сергей, Алексей, Наталія, Валерій, Екатерина, and Олександра
) is an extremely rare unknown gender first name. Much more frequently, Костьян is the last name as well as the forename.