Cognomen Haiun (Haiun 
) , in all the world, is a rare family name. The surname Haiun is characteristic of France, where it is a rare surname, Canada, where it is a very rare surname, and Israel. Measured by absolute frequency, this name is the most popular in France, Canada, and the United States. Much less frequently, Haiun is the forename as well as the last name.