Last name Rallum (Ralla 
, Rallum , Rallar) , globally, is quite a rare family name. The last name Rallum is habitual in Philippines, where it is a rare surname, India, and Australia, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in India, Philippines, and Indonesia. Much less frequently, Rallum is the forename as well as the last name.