Worldwide, Халков (Халков , Halkov , Khalkov ) is an extremely rare unknown gender first name. Much more prevalently, Халков is the last name as well as the forename.
Chalkov, and Halkow
Роман, Виктор, Сергей, Сергій, Валерий, Александр, Володимир, and Олександр
, Halkov 
) is an extremely rare unknown gender first name. Much more prevalently, Халков is the last name as well as the forename.