Cassian vs Rio

Baby Name Comparison — 2026

Cassian

Boy #617 Most Popular 3 Syllables

"of the Cassian family (Roman gens)"

Origin: Latin

English American European

✓ All Clear

Boy #517 Most Popular 2 Syllables

"river"

Origin: Spanish/Portuguese

Spanish Portuguese Brazilian American

✓ All Clear

Cassian Rank #617

Rio Rank #517

Rio is more popular, ranked #517 vs #617 for Cassian.

Is Cassian or Rio more popular?

Rio is more popular, ranked #517 compared to Cassian at #617 in the United States.

What do Cassian and Rio mean?

Cassian means "of the Cassian family (Roman gens)" (Latin origin). Rio means "river" (Spanish/Portuguese origin).

Are Cassian and Rio boy or girl names?

Cassian is primarily a boy name. Rio is primarily a boy name.