Surname Hrybok (Hrybok 
) , throughout the world, is a very rare cognomen. The cognomen Hrybok is characteristic of Belarus, where it is a rare surname, Poland, where it is a very rare surname, and Canada, where it is an extremely rare surname. Not in comparison with a country's population, it is the most numerous in Belarus, Poland, and the United States. Very seldom, Hrybok is the forename as well as the last name.