Worldwide, Shumiak (Shumiak , Шумяк ) is an extremely rare unknown gender forename. Much more frequently, Shumiak is the last name as well as the forename.
Шумиак
Nadiya, and Vitalii
, Шумяк 
) is an extremely rare unknown gender forename. Much more frequently, Shumiak is the last name as well as the forename.