Cognomen أينشتاين (Einstein 
, أينشتاين 
) , across the world, is quite a common surname. The last name أينشتاين is habitual in Estonia, where it is quite a rare surname, Israel, and Ghana. Not in comparison with a country's population, it is commonest in Indonesia, the United States, and Ghana. Also, أينشتاين is the forename as well as the last name.