The story
- Irish · derived fromÓ hAilpín“descendant of Ailpín”
- English todayO'Halpin
Anglicized form of Irish Ó hAilpín (“descendant of Ailpín”), a personal name derived from a diminutive of ailp (“lump, stout person”). Compare McAlpine.
Etymology from Wiktionary, CC BY-SA 4.0.