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Calahan
How to Pronounce Calahan
Pronounced KAL-ə-han /ˈkæl.ə.hæn/High
Meaning: A spelling of Callahan — from the Irish O Ceallachain, 'a descendant of Ceallachan' (variously 'bright-headed' or 'strife')Low
Popularity in the U.S. · SSA data
U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.
SSA data updated May 2026. How we source & verify this data.
History & Origin
Calahan is a spelling of Callahan — from the Irish O Ceallachain, 'a descendant of Ceallachan', a name variously read as 'bright-headed' or 'strife, contention' (debated, which we note). A rugged, Americana surname-name (nickname Cal).
In the U.S. it appears as a fresh first name. Rare in this spelling, a-descendant-of-Ceallachan at the root, and rugged.
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Frequently Asked
What does the name Calahan mean?
Calahan spells Callahan — Irish 'a descendant of Ceallachan' (variously 'bright-headed' or 'strife'); the meaning is debated.
How do you pronounce Calahan?
It's said KAL-ə-han /ˈkæl.ə.hæn/ — three syllables, stress on the first.
Is Calahan a boy or girl name?
Calahan is a boy's name.
How popular is Calahan?
Calahan is a rare name in the U.S.