Callahan
Meaning
"lover of churches"
Origin: Irish Gaelic
Cultural Roots
Quick Stats
- Popularity Rank
- #364
- Total SSA Count
- 907
- Syllables
- 3
- Formality
- Moderate
- Nicknames
- Cal, Cally, Han
Baby Name Comparison — 2026
"lover of churches"
Origin: Irish Gaelic
"olive tree"
Origin: Latin
Olivia is more popular, ranked #1 vs #364 for Callahan.
Historical US popularity rank — lower number means more popular.
Historical trend data not available for this comparison.
Names that pair well as siblings.
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Olivia is more popular, ranked #1 compared to Callahan at #364 in the United States.
Callahan means "lover of churches" (Irish Gaelic origin). Olivia means "olive tree" (Latin origin).
Callahan is primarily a boy name. Olivia is primarily a girl name.