Ace vs Declan

Baby Name Comparison — 2026

Ace

Boy #165 Most Popular 1 Syllable

"unity; the best; one"

Origin: Latin via Old French

American English Australian

✓ All Clear

Boy #131 Most Popular 2 Syllables

"man of prayer"

Origin: Irish Gaelic

Irish English American

✓ All Clear

Ace Rank #165

Declan Rank #131

Declan is more popular, ranked #131 vs #165 for Ace.

Is Ace or Declan more popular?

Declan is more popular, ranked #131 compared to Ace at #165 in the United States.

What do Ace and Declan mean?

Ace means "unity; the best; one" (Latin via Old French origin). Declan means "man of prayer" (Irish Gaelic origin).

Are Ace and Declan boy or girl names?

Ace is primarily a boy name. Declan is primarily a boy name.