Arlo vs Riley

Baby Name Comparison — 2026

Arlo

Boy #146 Most Popular 2 Syllables

"fortified hill"

Origin: Old English

English American Australian

✓ All Clear

Boy #229 Most Popular 2 Syllables

"courageous, valiant"

Origin: Irish

Irish English American

✓ All Clear

Arlo Rank #146

Riley Rank #229

Arlo is more popular, ranked #146 vs #229 for Riley.

Is Arlo or Riley more popular?

Arlo is more popular, ranked #146 compared to Riley at #229 in the United States.

What do Arlo and Riley mean?

Arlo means "fortified hill" (Old English origin). Riley means "courageous, valiant" (Irish origin).

Are Arlo and Riley boy or girl names?

Arlo is primarily a boy name. Riley is primarily a boy name.