Killian vs Julius

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 #390 Most Popular 3 Syllables

"of the Julian clan, youthful"

Origin: Latin

Roman European American Scandinavian

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Killian Rank #370

Julius Rank #390

Killian is more popular, ranked #370 vs #390 for Julius.

Is Killian or Julius more popular?

Killian is more popular, ranked #370 compared to Julius at #390 in the United States.

What do Killian and Julius mean?

Killian means "associated with the church" (Irish Gaelic origin). Julius means "of the Julian clan, youthful" (Latin origin).

Are Killian and Julius boy or girl names?

Killian is primarily a boy name. Julius is primarily a boy name.