The story
From the Irish surname, from Ó hÁgáin, "descendant of Ógán, diminutive of óg (“young”). Also from Ó hAodhagáin, "descendant of Aodhagán, from aodh (“fire”).
Etymology from Wiktionary, CC BY-SA 4.0.
Hagan
Today it means: A surname from Irish. Full definition →