Theodore vs Willliam

Baby Name Comparison — 2026

Theodore

Boy #4 Most Popular 3 Syllables

Meaning

"divine gift"

Origin: Greek

Cultural Roots

English French Greek

Quick Stats

Popularity Rank: #4
Total SSA Count: 12,011
Syllables: 3
Formality: Formal
Nicknames: Theo, Teddy, Ted

Playground Safety Score

✓ All Clear

Similar Names

Kai Micah Alejandro Leon

Full profile for Theodore →

Willliam

Boy #20,467 Most Popular

Quick Stats

Popularity Rank: #20,467
Total SSA Count: 6
Nicknames: Wil, Will, Willy

Playground Safety Score

✓ All Clear

Similar Names

Si Doug Varney Sigel

Full profile for Willliam →

Popularity Comparison

Theodore Rank #4

Willliam Rank #20,467

Theodore is more popular, ranked #4 vs #20467 for Willliam.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Theodore ___

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

Willliam ___

No pairings available yet.

Sibling Name Ideas

Names that pair well as siblings.

If you choose Theodore

Olivia Charlotte Amelia Eleanor Oliver

If you choose Willliam

No sibling data available yet.

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 Theodore or Willliam more popular?

Theodore is more popular, ranked #4 compared to Willliam at #20467 in the United States.

What do Theodore and Willliam mean?

Theodore means "divine gift" (Greek origin).

Are Theodore and Willliam boy or girl names?

Theodore is primarily a boy name. Willliam is primarily a boy name.

More Comparisons

Willliam vs Theodore Theodore vs Kai Theodore vs Micah Theodore vs Alejandro Theodore vs Leon

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