Family name קאלום (Callum 
, קאלום 
) , throughout the world, is quite a rare last name. The surname קאלום is characteristic of Jamaica, where it is quite a common surname, Malta, where it is quite a rare surname, and Australia, where it is a rare surname. Not in comparison with a country's population, the name is most common in the United States, the United Kingdom, and Jamaica. More prevalently, קאלום is the forename as well as the last name.