Bill vs Theodore

Baby Name Comparison — 2026

Bill

Boy #4,669 Most Popular 1 Syllable

Meaning

"resolute protector"

Origin: Old High German Willahelm

Cultural Roots

English American Australian

Quick Stats

Popularity Rank
#4,669
Total SSA Count
22
Syllables
1
Formality
Casual
Nicknames
Billy, Willy

Playground Safety Score

✓ All Clear
Full profile for Bill →

Popularity Comparison

Bill Rank #4,669
Theodore Rank #4

Theodore is more popular, ranked #4 vs #4669 for Bill.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Bill ___

  • Bill James
  • Bill Robert
  • Bill Thomas
  • Bill Henry
  • Bill Edward
  • Bill John

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 Bill

Bob Jack Tom Joe Betty

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 Bill or Theodore more popular?

Theodore is more popular, ranked #4 compared to Bill at #4669 in the United States.

What do Bill and Theodore mean?

Bill means "resolute protector" (Old High German Willahelm origin). Theodore means "divine gift" (Greek origin).

Are Bill and Theodore boy or girl names?

Bill is primarily a boy name. Theodore is primarily a boy name.

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