Cognomen 哈默 (Hamer 
, Hamor , Harmer 
) , all around the world, is a common last name. The cognomen 哈默 is habitual in Isle of Man, where it is quite a common surname, the United Kingdom, and Australia. In absolute terms, it most frequently occurs in the United States, the United Kingdom, and Australia. Much less frequently, 哈默 is the forename as well as the last name.