Cognomen האם (Ham 
, Hamm , Hamme 
) , around the world, is a widespread surname. The cognomen האם is habitual in Netherlands, where it is quite a common surname, Algeria, and Brunei (explore the name in all countries). In absolute terms, the name is most common in the United States, Algeria, and Germany. Much less frequently, האם is the forename as well as the last name.