Harold vs Theodore

Baby Name Comparison — 2026

Harold

Boy #991 Most Popular 2 Syllables

Meaning

"army ruler, power of the army"

Origin: Old English

Cultural Roots

English Scandinavian American

Quick Stats

Popularity Rank
#991
Total SSA Count
227
Syllables
2
Formality
Formal
Nicknames
Harry, Hal

Playground Safety Score

✓ All Clear
Full profile for Harold →

Popularity Comparison

Harold Rank #991
Theodore Rank #4

Theodore is more popular, ranked #4 vs #991 for Harold.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Harold ___

  • Harold James
  • Harold Edward
  • Harold Thomas
  • Harold Francis
  • Harold David
  • Harold William

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 Harold

Dorothy Mildred Walter Bernard Margaret

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 Harold or Theodore more popular?

Theodore is more popular, ranked #4 compared to Harold at #991 in the United States.

What do Harold and Theodore mean?

Harold means "army ruler, power of the army" (Old English origin). Theodore means "divine gift" (Greek origin).

Are Harold and Theodore boy or girl names?

Harold is primarily a boy name. Theodore is primarily a boy name.

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