Surname Erran (ערן 
, اران 
, Erran 
) , around the globe, is a rare cognomen. The cognomen Erran is characteristic of Israel, where it is quite a rare surname, Iran, where it is a rare surname, and Bulgaria. Not in comparison with a country's population, it most frequently occurs in Iran, Israel, and Iraq. More frequently, Erran is the forename as well as the last name.