The story
- Irish · derived fromÓ hAnnagáin“descendant of Annagán”
- English todayHannigan
Reduced Anglicized form of Irish Ó hAnnagáin (“descendant of Annagán”), a hypocoristic form of Annach (“Hanna”).
Etymology from Wiktionary, CC BY-SA 4.0.
Hannigan
Today it means: A surname from Irish. Full definition →
Irish Ó hAnnagáin