Surname איגן (Egan 
, איגן 
) , around the globe, is a common family name. The cognomen איגן is characteristic of Ireland, where it is a common surname, Australia, where it is quite a common surname, and the United Kingdom, where it is quite a rare surname. In absolute terms, it is commonest in the United States, Ireland, and the United Kingdom. Much less frequently, איגן is the forename as well as the last name.