Worldwide, Koubiak (Koubiak , Кубяк ) is an extremely rare unknown gender forename. Predominantly, Koubiak is the last name as well as the forename.
Кубиак, and Кубьяк
Jim, Bara, Iron, Ciril, Larry, Sylvie, Fabrice, Matthias, and Baptiste
, Кубяк 
) is an extremely rare unknown gender forename. Predominantly, Koubiak is the last name as well as the forename.