Cailo vs Miller

Baby Name Comparison — 2026

Cailo

Boy #15,816 Most Popular 2 Syllables

"rejoice, happy"

Origin: Welsh / Latin Gaius

English Welsh Modern American

✓ All Clear

Boy #439 Most Popular 2 Syllables

"one who mills grain"

Origin: Old English (mylenweard)

English American German

✓ All Clear

Cailo Rank #15,816

Miller Rank #439

Miller is more popular, ranked #439 vs #15816 for Cailo.

Is Cailo or Miller more popular?

Miller is more popular, ranked #439 compared to Cailo at #15816 in the United States.

What do Cailo and Miller mean?

Cailo means "rejoice, happy" (Welsh / Latin Gaius origin). Miller means "one who mills grain" (Old English (mylenweard) origin).

Are Cailo and Miller boy or girl names?

Cailo is primarily a boy name. Miller is primarily a boy name.