Killian vs Clark

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 #438 Most Popular 1 Syllable

"clerk, scribe, secretary"

Origin: Old English/Old French

English American Scottish

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Killian Rank #370

Clark Rank #438

Killian is more popular, ranked #370 vs #438 for Clark.

Is Killian or Clark more popular?

Killian is more popular, ranked #370 compared to Clark at #438 in the United States.

What do Killian and Clark mean?

Killian means "associated with the church" (Irish Gaelic origin). Clark means "clerk, scribe, secretary" (Old English/Old French origin).

Are Killian and Clark boy or girl names?

Killian is primarily a boy name. Clark is primarily a boy name.