Surname Hoyak (Hoyak 
) , all around the world, is a very rare last name. The cognomen Hoyak is habitual in Canada, where it is a very rare surname, the United States, where it is an extremely rare surname, and Germany. Measured by absolute frequency, it is commonest in the United States, India, and Canada. Very seldom, Hoyak is the forename as well as the last name.