Isaac vs Theo

Baby Name Comparison — 2026

Isaac

Boy #40 Most Popular 3 Syllables

"He will laugh; laughter"

Origin: Hebrew

English Jewish Spanish French

✓ All Clear

Boy #80 Most Popular 2 Syllables

"gift of God"

Origin: Greek (theodoros)

English Greek French German American

✓ All Clear

Isaac Rank #40

Theo Rank #80

Isaac is more popular, ranked #40 vs #80 for Theo.

Is Isaac or Theo more popular?

Isaac is more popular, ranked #40 compared to Theo at #80 in the United States.

What do Isaac and Theo mean?

Isaac means "He will laugh; laughter" (Hebrew origin). Theo means "gift of God" (Greek (theodoros) origin).

Are Isaac and Theo boy or girl names?

Isaac is primarily a boy name. Theo is primarily a boy name.