Dax vs Theodore

Baby Name Comparison — 2026

Dax

Boy #640 Most Popular 1 Syllable

Meaning

"water, thermal waters (place name)"

Origin: French/Basque

Cultural Roots

English American French

Quick Stats

Popularity Rank
#640
Total SSA Count
438
Syllables
1
Formality
Casual

Playground Safety Score

✓ All Clear
Full profile for Dax →

Popularity Comparison

Dax Rank #640
Theodore Rank #4

Theodore is more popular, ranked #4 vs #640 for Dax.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Dax ___

  • Dax James
  • Dax Cole
  • Dax Lee
  • Dax Michael
  • Dax River
  • Dax Stone

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 Dax

Jax Zoe Knox Mila Cash

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 Dax or Theodore more popular?

Theodore is more popular, ranked #4 compared to Dax at #640 in the United States.

What do Dax and Theodore mean?

Dax means "water, thermal waters (place name)" (French/Basque origin). Theodore means "divine gift" (Greek origin).

Are Dax and Theodore boy or girl names?

Dax is primarily a boy name. Theodore is primarily a boy name.

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