The story
- Irish · derived fromÓ Ceallacháin
- English todayCallahan
From Irish Ó Ceallacháin, from Ceallachán, diminutive of the given name Ceallach. Doublet of Kelly and Kellogg.
Etymology from Wiktionary, CC BY-SA 4.0.
Callahan
Today it means: A surname from Irish. Full definition →
Irish Ó Ceallacháin