Lou vs Astro

Baby Name Comparison — 2026

Lou

Boy #2,123 Most Popular 1 Syllable

"famous warrior"

Origin: Germanic via French Louis

French English American

24 High Risk

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

Boy #2,256 Most Popular 2 Syllables

"star"

Origin: Greek

American International Japanese

✓ All Clear

Lou Rank #2,123

Astro Rank #2,256

Lou is more popular, ranked #2123 vs #2256 for Astro.

Is Lou or Astro more popular?

Lou is more popular, ranked #2123 compared to Astro at #2256 in the United States.

What do Lou and Astro mean?

Lou means "famous warrior" (Germanic via French Louis origin). Astro means "star" (Greek origin).

Are Lou and Astro boy or girl names?

Lou is primarily a boy name. Astro is primarily a boy name.