Arlo vs Sonny

Baby Name Comparison — 2026

Arlo

Boy #146 Most Popular 2 Syllables

"fortified hill"

Origin: Old English

English American Australian

✓ All Clear

Boy #336 Most Popular 2 Syllables

"son, young boy"

Origin: English

American English Italian-American

✓ All Clear

Arlo Rank #146

Sonny Rank #336

Arlo is more popular, ranked #146 vs #336 for Sonny.

Is Arlo or Sonny more popular?

Arlo is more popular, ranked #146 compared to Sonny at #336 in the United States.

What do Arlo and Sonny mean?

Arlo means "fortified hill" (Old English origin). Sonny means "son, young boy" (English origin).

Are Arlo and Sonny boy or girl names?

Arlo is primarily a boy name. Sonny is primarily a boy name.