Thaddeus vs Casper

Baby Name Comparison — 2026

Thaddeus

Boy #850 Most Popular 3 Syllables

"courageous heart"

Origin: Aramaic

English Polish American Catholic

✓ All Clear

Boy #881 Most Popular 2 Syllables

"treasurer, keeper of treasure"

Origin: Persian

Dutch Scandinavian German English

✓ All Clear

Thaddeus Rank #850

Casper Rank #881

Thaddeus is more popular, ranked #850 vs #881 for Casper.

Is Thaddeus or Casper more popular?

Thaddeus is more popular, ranked #850 compared to Casper at #881 in the United States.

What do Thaddeus and Casper mean?

Thaddeus means "courageous heart" (Aramaic origin). Casper means "treasurer, keeper of treasure" (Persian origin).

Are Thaddeus and Casper boy or girl names?

Thaddeus is primarily a boy name. Casper is primarily a boy name.