Killian vs Louis

Baby Name Comparison — 2026

Killian

Boy #370 Most Popular 3 Syllables

"associated with the church"

Origin: Irish Gaelic

Irish French American English

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Boy #236 Most Popular 2 Syllables

"famous warrior, renowned in battle"

Origin: Germanic/Frankish

French English German Spanish Belgian

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Killian Rank #370

Louis Rank #236

Louis is more popular, ranked #236 vs #370 for Killian.

Is Killian or Louis more popular?

Louis is more popular, ranked #236 compared to Killian at #370 in the United States.

What do Killian and Louis mean?

Killian means "associated with the church" (Irish Gaelic origin). Louis means "famous warrior, renowned in battle" (Germanic/Frankish origin).

Are Killian and Louis boy or girl names?

Killian is primarily a boy name. Louis is primarily a boy name.