The story
- Irish · derived fromÓ hArragáin
- English todayHarrigan
Reduced Anglicized form of Irish Ó hArragáin, a corruption of Ó hÁnradháin (“descendant of Ánradhán”), a diminutive of ánradh (“warrior”). Compare Hanrahan and Horgan.
Etymology from Wiktionary, CC BY-SA 4.0.