In all the world, Koyuk (Koyuk ) is an extremely rare epicene first name. Much more frequently, Koyuk is the last name as well as the forename.
Коюк, and コユキ
Luis, Adolfo, Carlos, Carmen, Erdinc, Yiğit, Yücel, Albino, Çisem, Mustafa, Paulina, Roberto, Eduardo, Heather, Viviana, Mariano, Yalçin, Alison, Miguel, Juan, Ebru, Olga, Seval, Sedat, Ariel, Sergio, Adnan, Pedro, Ruben, Juana, Erdem, Evrim, Marisa, Brian, and Margarita
) is an extremely rare epicene first name. Much more frequently, Koyuk is the last name as well as the forename.