Arlo vs Knox

Baby Name Comparison — 2026

Arlo

Boy #146 Most Popular 2 Syllables

"fortified hill"

Origin: Old English

English American Australian

✓ All Clear

Boy #209 Most Popular 1 Syllable

"round hill"

Origin: Old English/Scottish

American Scottish English

✓ All Clear

Arlo Rank #146

Knox Rank #209

Arlo is more popular, ranked #146 vs #209 for Knox.

Is Arlo or Knox more popular?

Arlo is more popular, ranked #146 compared to Knox at #209 in the United States.

What do Arlo and Knox mean?

Arlo means "fortified hill" (Old English origin). Knox means "round hill" (Old English/Scottish origin).

Are Arlo and Knox boy or girl names?

Arlo is primarily a boy name. Knox is primarily a boy name.