Callahan

• Calahan, Callaham, Callihan, Callaghan, O'Callaghan

From Irish Ó Ceallacháin, from Ceallachán, diminutive of the given name Ceallach. Doublet of Kelly and Kellogg.

• IPA^(key): /ˈkæləhæn/

Callahan

1. A surname from Irish.

• Callahan County

• Callaghan

• Hanks, Patrick, editor (2003), “Callahan”, in Dictionary of American Family Names, volume 1, New York: Oxford University Press, →ISBN, page 271.

• Allanach