Flynn vs Thaddeus

Baby Name Comparison — 2026

Flynn

Boy #738 Most Popular 1 Syllable

"son of the red-haired one"

Origin: Irish Gaelic

Irish English Australian American

✓ All Clear

Boy #850 Most Popular 3 Syllables

"courageous heart"

Origin: Aramaic

English Polish American Catholic

✓ All Clear

Flynn Rank #738

Thaddeus Rank #850

Flynn is more popular, ranked #738 vs #850 for Thaddeus.

Is Flynn or Thaddeus more popular?

Flynn is more popular, ranked #738 compared to Thaddeus at #850 in the United States.

What do Flynn and Thaddeus mean?

Flynn means "son of the red-haired one" (Irish Gaelic origin). Thaddeus means "courageous heart" (Aramaic origin).

Are Flynn and Thaddeus boy or girl names?

Flynn is primarily a boy name. Thaddeus is primarily a boy name.