Family name Каллан (Callan 
, Каллан 
) , around the world, is a common last name. The last name Каллан is characteristic of Ireland, where it is quite a common surname, Peru, where it is quite a rare surname, and the United Kingdom. Not in comparison with a country's population, it is the most numerous in the United States, the United Kingdom, and Peru. Much less frequently, Каллан is the forename as well as the last name.