Calahan vs Sullivan

Baby Name Comparison — 2026

Calahan

Boy #6,281 Most Popular 3 Syllables

"lover of churches, church devotee"

Origin: Old Irish ceallach

Irish Irish American American

✓ All Clear

Boy #340 Most Popular 3 Syllables

"descendant of the dark one"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Calahan Rank #6,281

Sullivan Rank #340

Sullivan is more popular, ranked #340 vs #6281 for Calahan.

Is Calahan or Sullivan more popular?

Sullivan is more popular, ranked #340 compared to Calahan at #6281 in the United States.

What do Calahan and Sullivan mean?

Calahan means "lover of churches, church devotee" (Old Irish ceallach origin). Sullivan means "descendant of the dark one" (Irish Gaelic origin).

Are Calahan and Sullivan boy or girl names?

Calahan is primarily a boy name. Sullivan is primarily a boy name.