Louis vs Theodore

Baby Name Comparison — 2026

Louis

Boy #236 Most Popular 2 Syllables

Meaning

"famous warrior, renowned in battle"

Origin: Germanic/Frankish

Cultural Roots

French English German Spanish Belgian

Quick Stats

Popularity Rank
#236
Total SSA Count
1,503
Syllables
2
Formality
Formal
Nicknames
Lou, Louie

Playground Safety Score

✓ All Clear
Full profile for Louis →

Popularity Comparison

Louis Rank #236
Theodore Rank #4

Theodore is more popular, ranked #4 vs #236 for Louis.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Louis ___

  • Louis James
  • Louis Arthur
  • Louis Henry
  • Louis William
  • Louis Theodore
  • Louis Charles

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 Louis

Charlotte Eleanor Arthur Henry Theo

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 Louis or Theodore more popular?

Theodore is more popular, ranked #4 compared to Louis at #236 in the United States.

What do Louis and Theodore mean?

Louis means "famous warrior, renowned in battle" (Germanic/Frankish origin). Theodore means "divine gift" (Greek origin).

Are Louis and Theodore boy or girl names?

Louis is primarily a boy name. Theodore is primarily a boy name.

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