Thaddeus vs Allan

Baby Name Comparison — 2026

Thaddeus

Boy #850 Most Popular 3 Syllables

"courageous heart"

Origin: Aramaic

English Polish American Catholic

✓ All Clear

Boy #854 Most Popular 2 Syllables

"rock, harmony"

Origin: Celtic/Brythonic

Scottish English French American

✓ All Clear

Thaddeus Rank #850

Allan Rank #854

Thaddeus is more popular, ranked #850 vs #854 for Allan.

Is Thaddeus or Allan more popular?

Thaddeus is more popular, ranked #850 compared to Allan at #854 in the United States.

What do Thaddeus and Allan mean?

Thaddeus means "courageous heart" (Aramaic origin). Allan means "rock, harmony" (Celtic/Brythonic origin).

Are Thaddeus and Allan boy or girl names?

Thaddeus is primarily a boy name. Allan is primarily a boy name.