Theo vs Arlo

Baby Name Comparison — 2026

Theo

Boy #80 Most Popular 2 Syllables

"gift of God"

Origin: Greek (theodoros)

English Greek French German American

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Boy #146 Most Popular 2 Syllables

"fortified hill"

Origin: Old English

English American Australian

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Theo Rank #80

Arlo Rank #146

Theo is more popular, ranked #80 vs #146 for Arlo.

Is Theo or Arlo more popular?

Theo is more popular, ranked #80 compared to Arlo at #146 in the United States.

What do Theo and Arlo mean?

Theo means "gift of God" (Greek (theodoros) origin). Arlo means "fortified hill" (Old English origin).

Are Theo and Arlo boy or girl names?

Theo is primarily a boy name. Arlo is primarily a boy name.