Arlo vs River

Baby Name Comparison — 2026

Arlo

Boy #146 Most Popular 2 Syllables

"fortified hill"

Origin: Old English

English American Australian

✓ All Clear

Boy #112 Most Popular 2 Syllables

"flowing body of water, stream"

Origin: Old French

English American Australian

✓ All Clear

Arlo Rank #146

River Rank #112

River is more popular, ranked #112 vs #146 for Arlo.

Is Arlo or River more popular?

River is more popular, ranked #112 compared to Arlo at #146 in the United States.

What do Arlo and River mean?

Arlo means "fortified hill" (Old English origin). River means "flowing body of water, stream" (Old French origin).

Are Arlo and River boy or girl names?

Arlo is primarily a boy name. River is primarily a boy name.