Lou vs Kasyn

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 #2,055 Most Popular 2 Syllables

"vigilant in war"

Origin: Irish

American Irish

✓ All Clear

Lou Rank #2,123

Kasyn Rank #2,055

Kasyn is more popular, ranked #2055 vs #2123 for Lou.

Is Lou or Kasyn more popular?

Kasyn is more popular, ranked #2055 compared to Lou at #2123 in the United States.

What do Lou and Kasyn mean?

Lou means "famous warrior" (Germanic via French Louis origin). Kasyn means "vigilant in war" (Irish origin).

Are Lou and Kasyn boy or girl names?

Lou is primarily a boy name. Kasyn is primarily a boy name.