Theo vs Declan

Baby Name Comparison — 2026

Theo

Boy #80 Most Popular 2 Syllables

"gift of God"

Origin: Greek (theodoros)

English Greek French German American

✓ All Clear

Boy #131 Most Popular 2 Syllables

"man of prayer"

Origin: Irish Gaelic

Irish English American

✓ All Clear

Theo Rank #80

Declan Rank #131

Theo is more popular, ranked #80 vs #131 for Declan.

Is Theo or Declan more popular?

Theo is more popular, ranked #80 compared to Declan at #131 in the United States.

What do Theo and Declan mean?

Theo means "gift of God" (Greek (theodoros) origin). Declan means "man of prayer" (Irish Gaelic origin).

Are Theo and Declan boy or girl names?

Theo is primarily a boy name. Declan is primarily a boy name.