Cognomen האמר (Hamer 
, Hammer , Hamar 
) , in the world, is a common family name. The surname האמר is habitual in Norway, where it is quite a common surname, Austria, and Denmark (explore the name in all countries). Measured by absolute frequency, the name is most common in the United States, Germany, and the United Kingdom. Very seldom, האמר is the forename as well as the last name.