Killian vs Kayce

Baby Name Comparison — 2026

Killian

Boy #370 Most Popular 3 Syllables

"associated with the church"

Origin: Irish Gaelic

Irish French American English

✓ All Clear

Boy #420 Most Popular 2 Syllables

"alert, watchful, vigilant"

Origin: Irish Gaelic

American Irish

✓ All Clear

Killian Rank #370

Kayce Rank #420

Killian is more popular, ranked #370 vs #420 for Kayce.

Is Killian or Kayce more popular?

Killian is more popular, ranked #370 compared to Kayce at #420 in the United States.

What do Killian and Kayce mean?

Killian means "associated with the church" (Irish Gaelic origin). Kayce means "alert, watchful, vigilant" (Irish Gaelic origin).

Are Killian and Kayce boy or girl names?

Killian is primarily a boy name. Kayce is primarily a boy name.