In all the world, Halchev (Halchev , Халчев ) is an extremely rare unknown gender first name. Much more prevalently, Halchev is the last name as well as the forename.
Галчев, Галчёв, and Гальчев
Emil
, Халчев 
) is an extremely rare unknown gender first name. Much more prevalently, Halchev is the last name as well as the forename.