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Thaddeus vs Kellen

Baby Name Comparison — 2026

Popularity Comparison

Thaddeus Rank #850
Kellen Rank #1,031

Thaddeus is more popular, ranked #850 vs #1031 for Kellen.

Frequently Asked Questions

Is Thaddeus or Kellen more popular?

Thaddeus is more popular, ranked #850 compared to Kellen at #1031 in the United States.

What do Thaddeus and Kellen mean?

Thaddeus means "courageous heart" (Aramaic origin). Kellen means "slender, narrow" (Irish Gaelic 'caol' origin).

Are Thaddeus and Kellen boy or girl names?

Thaddeus is primarily a boy name. Kellen is primarily a boy name.

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← Full profile: Thaddeus ← Full profile: Kellen Browse all baby names