Cognomen Bahyan (Bahyan 
) , globally, is a rare family name. The family name Bahyan is characteristic of Saudi Arabia, where it is a rare surname, Turkey, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. Not in comparison with a country's population, it most frequently occurs in Saudi Arabia, Turkey, and India. Very seldom, Bahyan is the forename as well as the last name.