Theodore vs Wiliam

Baby Name Comparison — 2026

Wiliam

Boy #6,634 Most Popular 3 Syllables

Meaning

"resolute protector, determined guardian"

Origin: Old High German Willahelm

Cultural Roots

English American French German Irish

Quick Stats

Popularity Rank
#6,634
Total SSA Count
13
Syllables
3
Formality
Formal
Nicknames
Will, Willie, Bill

Playground Safety Score

✓ All Clear
Full profile for Wiliam →

Popularity Comparison

Theodore Rank #4
Wiliam Rank #6,634

Theodore is more popular, ranked #4 vs #6634 for Wiliam.

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

Wiliam ___

  • Wiliam James
  • Wiliam Thomas
  • Wiliam Henry
  • Wiliam Alexander
  • Wiliam Joseph
  • Wiliam Edward

Sibling Name Ideas

Names that pair well as siblings.

If you choose Theodore

Olivia Charlotte Amelia Eleanor Oliver

If you choose Wiliam

Henry George Charlotte Eleanor Catherine

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 Wiliam more popular?

Theodore is more popular, ranked #4 compared to Wiliam at #6634 in the United States.

What do Theodore and Wiliam mean?

Theodore means "divine gift" (Greek origin). Wiliam means "resolute protector, determined guardian" (Old High German Willahelm origin).

Are Theodore and Wiliam boy or girl names?

Theodore is primarily a boy name. Wiliam is primarily a boy name.

More Comparisons

Wiliam vs Theodore Theodore vs Jacob Theodore vs Wyatt Theodore vs Beau Theodore vs Jaxson
← Full profile: Theodore ← Full profile: Wiliam Browse all baby names