Alaster vs Thaddaeus

Baby Name Comparison — 2026

Alaster

Boy #5,903 Most Popular 3 Syllables

"defender of men, protector of mankind"

Origin: Greek via Scottish Gaelic

Scottish Irish English Celtic

✓ All Clear

Boy #5,721 Most Popular 3 Syllables

"heart, courageous heart"

Origin: Aramaic

Christian English Greek Latin

✓ All Clear

Alaster Rank #5,903

Thaddaeus Rank #5,721

Thaddaeus is more popular, ranked #5721 vs #5903 for Alaster.

Is Alaster or Thaddaeus more popular?

Thaddaeus is more popular, ranked #5721 compared to Alaster at #5903 in the United States.

What do Alaster and Thaddaeus mean?

Alaster means "defender of men, protector of mankind" (Greek via Scottish Gaelic origin). Thaddaeus means "heart, courageous heart" (Aramaic origin).

Are Alaster and Thaddaeus boy or girl names?

Alaster is primarily a boy name. Thaddaeus is primarily a boy name.