Worldwide, Гладкии (Гладкии , Gladkii , Gladkyy ) is an extremely rare unknown gender first name. Much more frequently, Гладкии is the last name as well as the forename.
Hladkii, and Hladkyy
Олег, Антон, Роман, Максим, Андрей, Никита, Виктор, Сергей, Алексей, Дмитрий, Анатолий, Валентин, Владимир, Вячеслав, and Александр
, Gladkii 
, Gladkyy 
) is an extremely rare unknown gender first name. Much more frequently, Гладкии is the last name as well as the forename.