Surname Хамм (Hamm 
, Khamm 
, Хамм 
) , all over the world, is a common last name. The cognomen Хамм is characteristic of Germany, where it is quite a common surname, the United States, where it is quite a rare surname, and Jamaica. Measured by absolute frequency, the name is most common in the United States, Germany, and France. Very seldom, Хамм is the forename as well as the last name.