Cognomen Hedaiat (Hedaiat 
) , around the globe, is a very rare family name. The surname Hedaiat is characteristic of Norway, where it is a rare surname, Iran, where it is a very rare surname, and Canada, where it is an extremely rare surname. Not in comparison with a country's population, this name is the most popular in Iran, Norway, and Germany. Likewise, Hedaiat is the forename as well as the last name.