Killian vs Clay

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 #544 Most Popular 1 Syllable

"clay settlement, clay worker"

Origin: Old English

English American Southern American

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Killian Rank #370

Clay Rank #544

Killian is more popular, ranked #370 vs #544 for Clay.

Is Killian or Clay more popular?

Killian is more popular, ranked #370 compared to Clay at #544 in the United States.

What do Killian and Clay mean?

Killian means "associated with the church" (Irish Gaelic origin). Clay means "clay settlement, clay worker" (Old English origin).

Are Killian and Clay boy or girl names?

Killian is primarily a boy name. Clay is primarily a boy name.