Family name Hayoun (Hayoun
, חיון
) , globally, is quite a common last name. The last name Hayoun is characteristic of Israel, where it is quite a common surname, Morocco, where it is quite a rare surname, and Switzerland. Not in comparison with a country's population, this name is the most popular in Israel, Morocco, and France. Very seldom, Hayoun is the forename as well as the last name.