Kacey vs Thaddeus

Baby Name Comparison — 2026

Kacey

Boy #1,045 Most Popular 2 Syllables

"brave in battle, vigilant"

Origin: Irish Gaelic

Irish American

✓ All Clear

Boy #850 Most Popular 3 Syllables

"courageous heart"

Origin: Aramaic

English Polish American Catholic

✓ All Clear

Kacey Rank #1,045

Thaddeus Rank #850

Thaddeus is more popular, ranked #850 vs #1045 for Kacey.

Is Kacey or Thaddeus more popular?

Thaddeus is more popular, ranked #850 compared to Kacey at #1045 in the United States.

What do Kacey and Thaddeus mean?

Kacey means "brave in battle, vigilant" (Irish Gaelic origin). Thaddeus means "courageous heart" (Aramaic origin).

Are Kacey and Thaddeus boy or girl names?

Kacey is primarily a boy name. Thaddeus is primarily a boy name.