Thaddeus vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Thaddeus Rank #850
Theodore Rank #4

Theodore is more popular, ranked #4 vs #850 for Thaddeus.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Thaddeus ___

  • Thaddeus James
  • Thaddeus William
  • Thaddeus John
  • Thaddeus August
  • Thaddeus Cole
  • Thaddeus Lee

Theodore ___

  • Theodore James
  • Theodore William
  • Theodore Alexander
  • Theodore John
  • Theodore Henry
  • Theodore Arthur

Sibling Name Ideas

Names that pair well as siblings.

If you choose Thaddeus

Augustus Sebastian Cornelius Edmund Beatrice

If you choose Theodore

Olivia Charlotte Amelia Eleanor Oliver

Which Name Fits Your Family?

Answer 3 quick questions and we'll help you decide.

1. Which style feels more like your family?

Frequently Asked Questions

Is Thaddeus or Theodore more popular?

Theodore is more popular, ranked #4 compared to Thaddeus at #850 in the United States.

What do Thaddeus and Theodore mean?

Thaddeus means "courageous heart" (Aramaic origin). Theodore means "divine gift" (Greek origin).

Are Thaddeus and Theodore boy or girl names?

Thaddeus is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

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