All over the world, Tsolko (Tsolko , Цьолко ) is an extremely rare unknown gender forename. Much more frequently, Tsolko is the last name as well as the forename.
Тсолко, Цолко, Цьолько, and צולקו
Taras, and Gkioulsen
, Цьолко 
) is an extremely rare unknown gender forename. Much more frequently, Tsolko is the last name as well as the forename.