Globally, Hanchenko (Hanchenko , Ханченко ) is an extremely rare unknown gender forename. Much more frequently, Hanchenko is the last name as well as the forename.
Ганченко, and Ганьченко
, Ханченко 
) is an extremely rare unknown gender forename. Much more frequently, Hanchenko is the last name as well as the forename.