Killian vs Otto

Baby Name Comparison — 2026

Killian

Boy #370 Most Popular 3 Syllables

"associated with the church"

Origin: Irish Gaelic

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Boy #274 Most Popular 2 Syllables

"wealth, fortune, prosperity"

Origin: Old High German

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Killian Rank #370

Otto Rank #274

Otto is more popular, ranked #274 vs #370 for Killian.

Is Killian or Otto more popular?

Otto is more popular, ranked #274 compared to Killian at #370 in the United States.

What do Killian and Otto mean?

Killian means "associated with the church" (Irish Gaelic origin). Otto means "wealth, fortune, prosperity" (Old High German origin).

Are Killian and Otto boy or girl names?

Killian is primarily a boy name. Otto is primarily a boy name.