Callan Family History
Callan Name Meaning
Irish (Louth and Monaghan): shortened Anglicized form of Gaelic Ó Cathaláin ‘descendant of Cathalán’ a personal name representing a diminutive of Cathal (see Cahill ). Irish and Scottish: Anglicized form of Gaelic Mac Cailein ‘son of Cailean’ or Mac Ailein see McCallion and Collin . English: variant of Callen .
Source: Dictionary of American Family Names 2nd edition, 2022