Jett vs Declan

Baby Name Comparison — 2026

Jett

Boy #161 Most Popular 1 Syllable

"black gemstone; jet"

Origin: English

American Australian English

✓ All Clear

Boy #131 Most Popular 2 Syllables

"man of prayer"

Origin: Irish Gaelic

Irish English American

✓ All Clear

Jett Rank #161

Declan Rank #131

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

Is Jett or Declan more popular?

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

What do Jett and Declan mean?

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

Are Jett and Declan boy or girl names?

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