Brennan vs Harold

Baby Name Comparison — 2026

Brennan

Boy #1,058 Most Popular 2 Syllables

Meaning

"descendant of Braonán, tearful one"

Origin: Irish Gaelic

Cultural Roots

Irish American Scottish

Quick Stats

Popularity Rank
#1,058
Total SSA Count
207
Syllables
2
Formality
Moderate
Nicknames
Bren, Benny

Playground Safety Score

✓ All Clear
Full profile for Brennan →

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

Brennan Rank #1,058
Harold Rank #991

Harold is more popular, ranked #991 vs #1058 for Brennan.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Brennan ___

  • Brennan Patrick
  • Brennan James
  • Brennan Michael
  • Brennan Thomas
  • Brennan Sean
  • Brennan Finn

Harold ___

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

Sibling Name Ideas

Names that pair well as siblings.

If you choose Brennan

Declan Ronan Callum Fionn Niamh

If you choose Harold

Dorothy Mildred Walter Bernard Margaret

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 Brennan or Harold more popular?

Harold is more popular, ranked #991 compared to Brennan at #1058 in the United States.

What do Brennan and Harold mean?

Brennan means "descendant of Braonán, tearful one" (Irish Gaelic origin). Harold means "army ruler, power of the army" (Old English origin).

Are Brennan and Harold boy or girl names?

Brennan is primarily a boy name. Harold is primarily a boy name.

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