Around the world, Callus (Callum 
, Callus ) is a common masculine first name. The forename Callus is habitual in the United Kingdom, where it is quite a common boy's name, Australia, and Ireland, where it is quite a rare male name. Very seldom, Callus is the last name as well as the forename.
Callus is also a name for the fictitious and mythical characters: Callum , the fictional character from the animated television series The Dragon Prince; Callum Jones , the fictional character from the Australian soap opera Neighbours; Callum Stone , the fictional character from British police procedural television series The Bill; Callum Kane , the fictional character from the British television soap opera Hollyoaks, played by Laurie Duncan and Callum Finnegan .