Callahan vs Sullivan

Baby Name Comparison — 2026

Popularity Comparison

Callahan Rank #364
Sullivan Rank #340

Sullivan is more popular, ranked #340 vs #364 for Callahan.

Frequently Asked Questions

Is Callahan or Sullivan more popular?

Sullivan is more popular, ranked #340 compared to Callahan at #364 in the United States.

What do Callahan and Sullivan mean?

Callahan means "lover of churches" (Irish Gaelic origin). Sullivan means "descendant of the dark one" (Irish Gaelic origin).

Are Callahan and Sullivan boy or girl names?

Callahan is primarily a boy name. Sullivan is primarily a boy name.

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