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Home › Baby Names Directory › Kallahan

Kallahan

♂ Boy

Pronounced KAL-ə-han /ˈkæl.ə.hæn/High

Meaning: K-spelling of Callahan — from Irish O'Ceallachain, possibly 'bright-headed' or 'strife, contention'; routes debatedLow

In 30 seconds: Irish and spirited: Kallahan spells Callahan — possibly 'bright-headed' — with a crisp K. Rugged, friendly, and bold.
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Origin MediumIrish
MeaningK-spelling of Callahan — from Irish O'Ceallachain, possibly 'bright-headed' or 'strife, contention'; routes debated
U.S. rank (2025)#3163 ↗ Rising
2025 U.S. births38 boys (0.00% of U.S. boys)
Peak year2025
Total births (all-time)≈ 131

Popularity in the U.S. · SSA data

peak 202520172025

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

Kallahan is a K-spelling of Callahan — from Irish O'Ceallachain, possibly 'bright-headed' or 'strife, contention' (the root is debated, which we note). A rugged, friendly Irish surname-name.

It registers thinly beside Callahan. Rare, bright-headed-or-strife at the root, and spirited.

Did you know? Callahan comes from the Irish O'Ceallachain — possibly 'bright-headed' or 'strife'; Kallahan gives the lively surname-name a K-spelling.
Overall data confidence 62%
Behind the Name — Callahan — root debated

Variations

CallahanCalahanKalahan

Nicknames

Kal

Famous Bearers

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If you like Kallahan…

Callahan— the standard spelling
Callum— a fellow Irish/Scottish name
Keegan— a companion Irish surname-name
Brennan— another Irish boys' name

Explore names like Kallahan

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Frequently Asked

What does the name Kallahan mean?

Kallahan spells Callahan — possibly 'bright-headed' or 'strife' (Irish); the root is debated.

How do you pronounce Kallahan?

It's said KAL-ə-han /ˈkæl.ə.hæn/ — three syllables, stress on the first.

Is Kallahan a boy or girl name?

Kallahan is a boy's name.

How popular is Kallahan?

Kallahan is a rare spelling in the U.S.

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