Rio vs Miller

Baby Name Comparison — 2026

Rio

Boy #517 Most Popular 2 Syllables

"river"

Origin: Spanish/Portuguese

Spanish Portuguese Brazilian American

✓ All Clear

Boy #439 Most Popular 2 Syllables

"one who mills grain"

Origin: Old English (mylenweard)

English American German

✓ All Clear

Rio Rank #517

Miller Rank #439

Miller is more popular, ranked #439 vs #517 for Rio.

Is Rio or Miller more popular?

Miller is more popular, ranked #439 compared to Rio at #517 in the United States.

What do Rio and Miller mean?

Rio means "river" (Spanish/Portuguese origin). Miller means "one who mills grain" (Old English (mylenweard) origin).

Are Rio and Miller boy or girl names?

Rio is primarily a boy name. Miller is primarily a boy name.