Aiden vs Theo

Baby Name Comparison — 2026

Aiden

Boy #47 Most Popular 2 Syllables

"Little fire; born of fire"

Origin: Irish Gaelic

Irish English American

✓ All Clear

Boy #80 Most Popular 2 Syllables

"gift of God"

Origin: Greek (theodoros)

English Greek French German American

✓ All Clear

Aiden Rank #47

Theo Rank #80

Aiden is more popular, ranked #47 vs #80 for Theo.

Is Aiden or Theo more popular?

Aiden is more popular, ranked #47 compared to Theo at #80 in the United States.

What do Aiden and Theo mean?

Aiden means "Little fire; born of fire" (Irish Gaelic origin). Theo means "gift of God" (Greek (theodoros) origin).

Are Aiden and Theo boy or girl names?

Aiden is primarily a boy name. Theo is primarily a boy name.