Killian vs King

Baby Name Comparison — 2026

Killian

Boy #370 Most Popular 3 Syllables

"associated with the church"

Origin: Irish Gaelic

Irish French American English

✓ All Clear

Boy #343 Most Popular 1 Syllable

"king, ruler, monarch"

Origin: Old English

American English African American

✓ All Clear

Killian Rank #370

King Rank #343

King is more popular, ranked #343 vs #370 for Killian.

Is Killian or King more popular?

King is more popular, ranked #343 compared to Killian at #370 in the United States.

What do Killian and King mean?

Killian means "associated with the church" (Irish Gaelic origin). King means "king, ruler, monarch" (Old English origin).

Are Killian and King boy or girl names?

Killian is primarily a boy name. King is primarily a boy name.