Globally, Oleynyk (Олеиник , Олеыник , Oleynyk ) is an extremely rare unknown gender forename. Much more prevalently, Oleynyk is the last name as well as the forename.
Олеинык, Олейнык, and Олеынык
Alla, Olga, Lesya, Tanya, Vadym, Sylvie, Andriy, Victor, Viktor, Svitlana, Kateryna, and Volodymyr
, Олеыник 
) is an extremely rare unknown gender forename. Much more prevalently, Oleynyk is the last name as well as the forename.