Killian vs Miller

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 #439 Most Popular 2 Syllables

"one who mills grain"

Origin: Old English (mylenweard)

English American German

✓ All Clear

Killian Rank #370

Miller Rank #439

Killian is more popular, ranked #370 vs #439 for Miller.

Is Killian or Miller more popular?

Killian is more popular, ranked #370 compared to Miller at #439 in the United States.

What do Killian and Miller mean?

Killian means "associated with the church" (Irish Gaelic origin). Miller means "one who mills grain" (Old English (mylenweard) origin).

Are Killian and Miller boy or girl names?

Killian is primarily a boy name. Miller is primarily a boy name.