Family name Халлам (Hallam 
, Халлам 
) , throughout the world, is a common surname. The cognomen Халлам is characteristic of Grenada, where it is quite a common surname, the United Kingdom, and Australia, where it is quite a rare surname. In absolute terms, it most frequently occurs in the United Kingdom, the United States, and Australia. Much less frequently, Халлам is the forename as well as the last name.