Thadeo vs Theodore

Baby Name Comparison — 2026

Thadeo

Boy #4,913 Most Popular 3 Syllables

Meaning

"courageous heart"

Origin: Aramaic

Cultural Roots

Spanish Portuguese Latin American East African Polish

Quick Stats

Popularity Rank
#4,913
Total SSA Count
20
Syllables
3
Formality
Moderate
Nicknames
Tad, Teo, Deo

Playground Safety Score

✓ All Clear
Full profile for Thadeo →

Popularity Comparison

Thadeo Rank #4,913
Theodore Rank #4

Theodore is more popular, ranked #4 vs #4913 for Thadeo.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Thadeo ___

  • Thadeo Antonio
  • Thadeo Miguel
  • Thadeo Rafael
  • Thadeo James
  • Thadeo Joseph
  • Thadeo Sebastian

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 Thadeo

Mateo Santiago Elena Sofia Rafael

If you choose Theodore

Olivia Charlotte Amelia Eleanor Oliver

Which Name Fits Your Family?

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1. Which style feels more like your family?

Frequently Asked Questions

Is Thadeo or Theodore more popular?

Theodore is more popular, ranked #4 compared to Thadeo at #4913 in the United States.

What do Thadeo and Theodore mean?

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

Are Thadeo and Theodore boy or girl names?

Thadeo is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

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