Lou vs Olsen

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 #2,247 Most Popular 2 Syllables

"son of Ole (ancestor)"

Origin: Old Norse

Norwegian Danish Swedish American

✓ All Clear

Lou Rank #2,123

Olsen Rank #2,247

Lou is more popular, ranked #2123 vs #2247 for Olsen.

Is Lou or Olsen more popular?

Lou is more popular, ranked #2123 compared to Olsen at #2247 in the United States.

What do Lou and Olsen mean?

Lou means "famous warrior" (Germanic via French Louis origin). Olsen means "son of Ole (ancestor)" (Old Norse origin).

Are Lou and Olsen boy or girl names?

Lou is primarily a boy name. Olsen is primarily a boy name.