Family name Ейвин (Eivin 
, Eyvin 
, Ejvin 
) , all over the world, is a rare last name. The cognomen Ейвин is habitual in Estonia, where it is quite a rare surname, Latvia, where it is a rare surname, and Nicaragua. Not in comparison with a country's population, it is commonest in Estonia, Honduras, and Nicaragua. Also, Ейвин is the forename as well as the last name.