Billie vs Theodore

Baby Name Comparison — 2026

Billie

Girl #694 Most Popular 2 Syllables

Meaning

"resolute protection, strong-willed guardian"

Origin: Old Germanic via English

Cultural Roots

English American Australian

Quick Stats

Popularity Rank
#694
Total SSA Count
405
Syllables
2
Formality
Casual
Nicknames
Bill, Bee

Playground Safety Score

✓ All Clear
Full profile for Billie →

Popularity Comparison

Billie Rank #694
Theodore Rank #4

Theodore is more popular, ranked #4 vs #694 for Billie.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Billie ___

  • Billie Jean
  • Billie Jo
  • Billie Mae
  • Billie Ray
  • Billie Grace
  • Billie Rose

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 Billie

Bobbie Frankie Charlie Stevie Georgie

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 Billie or Theodore more popular?

Theodore is more popular, ranked #4 compared to Billie at #694 in the United States.

What do Billie and Theodore mean?

Billie means "resolute protection, strong-willed guardian" (Old Germanic via English origin). Theodore means "divine gift" (Greek origin).

Are Billie and Theodore boy or girl names?

Billie is primarily a girl name. Theodore is primarily a boy name.

More Comparisons

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