Sullivan vs Kayce

Baby Name Comparison — 2026

Sullivan

Boy #340 Most Popular 3 Syllables

"descendant of the dark one"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Boy #420 Most Popular 2 Syllables

"alert, watchful, vigilant"

Origin: Irish Gaelic

American Irish

✓ All Clear

Sullivan Rank #340

Kayce Rank #420

Sullivan is more popular, ranked #340 vs #420 for Kayce.

Is Sullivan or Kayce more popular?

Sullivan is more popular, ranked #340 compared to Kayce at #420 in the United States.

What do Sullivan and Kayce mean?

Sullivan means "descendant of the dark one" (Irish Gaelic origin). Kayce means "alert, watchful, vigilant" (Irish Gaelic origin).

Are Sullivan and Kayce boy or girl names?

Sullivan is primarily a boy name. Kayce is primarily a boy name.