Thaddaeus vs Alaster

Baby Name Comparison — 2026

Thaddaeus

Boy #5,721 Most Popular 3 Syllables

"heart, courageous heart"

Origin: Aramaic

Christian English Greek Latin

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Boy #5,903 Most Popular 3 Syllables

"defender of men, protector of mankind"

Origin: Greek via Scottish Gaelic

Scottish Irish English Celtic

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Thaddaeus Rank #5,721

Alaster Rank #5,903

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

Is Thaddaeus or Alaster more popular?

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

What do Thaddaeus and Alaster mean?

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

Are Thaddaeus and Alaster boy or girl names?

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