Libby vs Theodore

Baby Name Comparison — 2026

Libby

Girl #1,122 Most Popular 2 Syllables

Meaning

"pledged to God, God is my oath"

Origin: Hebrew (via Elizabeth)

Cultural Roots

English American Irish

Quick Stats

Popularity Rank
#1,122
Total SSA Count
215
Syllables
2
Formality
Casual
Nicknames
Lib

Playground Safety Score

✓ All Clear
Full profile for Libby →

Popularity Comparison

Libby Rank #1,122
Theodore Rank #4

Theodore is more popular, ranked #4 vs #1122 for Libby.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Libby ___

  • Libby Jane
  • Libby Rose
  • Libby Mae
  • Libby Ann
  • Libby Grace
  • Libby Kate

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 Libby

Nellie Archie Millie Freddie Rosie

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 Libby or Theodore more popular?

Theodore is more popular, ranked #4 compared to Libby at #1122 in the United States.

What do Libby and Theodore mean?

Libby means "pledged to God, God is my oath" (Hebrew (via Elizabeth) origin). Theodore means "divine gift" (Greek origin).

Are Libby and Theodore boy or girl names?

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

More Comparisons

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