Declan vs Jett

Baby Name Comparison — 2026

Declan

Boy #131 Most Popular 2 Syllables

"man of prayer"

Origin: Irish Gaelic

Irish English American

✓ All Clear

Boy #161 Most Popular 1 Syllable

"black gemstone; jet"

Origin: English

American Australian English

✓ All Clear

Declan Rank #131

Jett Rank #161

Declan is more popular, ranked #131 vs #161 for Jett.

Is Declan or Jett more popular?

Declan is more popular, ranked #131 compared to Jett at #161 in the United States.

What do Declan and Jett mean?

Declan means "man of prayer" (Irish Gaelic origin). Jett means "black gemstone; jet" (English origin).

Are Declan and Jett boy or girl names?

Declan is primarily a boy name. Jett is primarily a boy name.