All around the world, Fostyak (Fostyak , Фостяк ) is an extremely rare unknown gender forename. Predominantly, Fostyak is the last name as well as the forename.
Фостиак
Oleg, Oleh, Diana, Taras, Iryna, Andriy, Ruslan, Oksana, Mariana, Vitaliy, Markiyan, Viktoria, and Khrystyna
, Фостяк 
) is an extremely rare unknown gender forename. Predominantly, Fostyak is the last name as well as the forename.