Cognomen Haidarian (Хайдарьян 
, Haidarian 
) , all around the world, is a very rare last name. The family name Haidarian is characteristic of Finland, where it is a very rare surname, Netherlands, and Argentina. Not in comparison with a country's population, the name is most common in the United States, Iran, and Argentina. Likewise, Haidarian is the forename as well as the last name.