Kayce vs Killian

Baby Name Comparison — 2026

Kayce

Boy #420 Most Popular 2 Syllables

"alert, watchful, vigilant"

Origin: Irish Gaelic

American Irish

✓ All Clear

Boy #370 Most Popular 3 Syllables

"associated with the church"

Origin: Irish Gaelic

Irish French American English

✓ All Clear

Kayce Rank #420

Killian Rank #370

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

Is Kayce or Killian more popular?

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

What do Kayce and Killian mean?

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

Are Kayce and Killian boy or girl names?

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