Callan vs Killian

Baby Name Comparison — 2026

Callan

Boy #242 Most Popular 2 Syllables

"little battle"

Origin: Scottish Gaelic

Scottish Irish American

✓ All Clear

Boy #370 Most Popular 3 Syllables

"associated with the church"

Origin: Irish Gaelic

Irish French American English

✓ All Clear

Callan Rank #242

Killian Rank #370

Callan is more popular, ranked #242 vs #370 for Killian.

Is Callan or Killian more popular?

Callan is more popular, ranked #242 compared to Killian at #370 in the United States.

What do Callan and Killian mean?

Callan means "little battle" (Scottish Gaelic origin). Killian means "associated with the church" (Irish Gaelic origin).

Are Callan and Killian boy or girl names?

Callan is primarily a boy name. Killian is primarily a boy name.