Thaddeus vs Kellan

Baby Name Comparison — 2026

Thaddeus

Boy #850 Most Popular 3 Syllables

"courageous heart"

Origin: Aramaic

English Polish American Catholic

✓ All Clear

Boy #919 Most Popular 2 Syllables

"slender, bright-headed"

Origin: Irish Gaelic

Irish Scottish American

✓ All Clear

Thaddeus Rank #850

Kellan Rank #919

Thaddeus is more popular, ranked #850 vs #919 for Kellan.

Is Thaddeus or Kellan more popular?

Thaddeus is more popular, ranked #850 compared to Kellan at #919 in the United States.

What do Thaddeus and Kellan mean?

Thaddeus means "courageous heart" (Aramaic origin). Kellan means "slender, bright-headed" (Irish Gaelic origin).

Are Thaddeus and Kellan boy or girl names?

Thaddeus is primarily a boy name. Kellan is primarily a boy name.