Dan vs Lou

Baby Name Comparison — 2026

Dan

Boy #1,931 Most Popular 1 Syllable

Meaning

"judge"

Origin: Hebrew

Cultural Roots

English Hebrew American Scandinavian

Quick Stats

Popularity Rank
#1,931
Total SSA Count
82
Syllables
1
Formality
Moderate
Nicknames
Danny

Playground Safety Score

✓ All Clear
Full profile for Dan →

Lou

Boy #2,123 Most Popular 1 Syllable

Meaning

"famous warrior"

Origin: Germanic via French Louis

Cultural Roots

French English American

Quick Stats

Popularity Rank
#2,123
Total SSA Count
70
Syllables
1
Formality
Casual

Playground Safety Score

24 High Risk

{:type=>:nickname, :severity=>:medium, :message=>"'Lou' can be twisted to 'poo'"}

Full profile for Lou →

Popularity Comparison

Dan Rank #1,931
Lou Rank #2,123

Dan is more popular, ranked #1931 vs #2123 for Lou.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Dan ___

  • Dan James
  • Dan Lee
  • Dan Allen
  • Dan Scott
  • Dan Wayne
  • Dan Michael

Lou ___

  • Lou Henry
  • Lou James
  • Lou William
  • Lou Allen
  • Lou Clark
  • Lou Reed

Sibling Name Ideas

Names that pair well as siblings.

If you choose Dan

Tom Sam Ben Kate Anne

If you choose Lou

Beau Nell Dot June Ray

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 Dan or Lou more popular?

Dan is more popular, ranked #1931 compared to Lou at #2123 in the United States.

What do Dan and Lou mean?

Dan means "judge" (Hebrew origin). Lou means "famous warrior" (Germanic via French Louis origin).

Are Dan and Lou boy or girl names?

Dan is primarily a boy name. Lou is primarily a boy name.

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