Dillion vs Thaddaeus

Baby Name Comparison — 2026

Dillion

Boy #5,680 Most Popular 3 Syllables

"faithful, loyal"

Origin: Old Irish Dallán

Irish Welsh American English

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Boy #5,721 Most Popular 3 Syllables

"heart, courageous heart"

Origin: Aramaic

Christian English Greek Latin

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Dillion Rank #5,680

Thaddaeus Rank #5,721

Dillion is more popular, ranked #5680 vs #5721 for Thaddaeus.

Is Dillion or Thaddaeus more popular?

Dillion is more popular, ranked #5680 compared to Thaddaeus at #5721 in the United States.

What do Dillion and Thaddaeus mean?

Dillion means "faithful, loyal" (Old Irish Dallán origin). Thaddaeus means "heart, courageous heart" (Aramaic origin).

Are Dillion and Thaddaeus boy or girl names?

Dillion is primarily a boy name. Thaddaeus is primarily a boy name.