Hiro vs Lou

Baby Name Comparison — 2026

Hiro

Boy #2,121 Most Popular 2 Syllables

"generous, tolerant"

Origin: Japanese kanji 寛

Japanese American Japanese-American

✓ All Clear

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'"}

Hiro Rank #2,121

Lou Rank #2,123

Hiro is more popular, ranked #2121 vs #2123 for Lou.

Is Hiro or Lou more popular?

Hiro is more popular, ranked #2121 compared to Lou at #2123 in the United States.

What do Hiro and Lou mean?

Hiro means "generous, tolerant" (Japanese kanji 寛 origin). Lou means "famous warrior" (Germanic via French Louis origin).

Are Hiro and Lou boy or girl names?

Hiro is primarily a boy name. Lou is primarily a boy name.