Jack vs Theodore

Baby Name Comparison — 2026

Jack

Boy #15 Most Popular 1 Syllable

"supplanter"

Origin: Hebrew

English Irish American Australian

✓ All Clear

Boy #4 Most Popular 3 Syllables

"divine gift"

Origin: Greek

English French Greek

✓ All Clear

Jack Rank #15

Theodore Rank #4

Theodore is more popular, ranked #4 vs #15 for Jack.

Is Jack or Theodore more popular?

Theodore is more popular, ranked #4 compared to Jack at #15 in the United States.

What do Jack and Theodore mean?

Jack means "supplanter" (Hebrew origin). Theodore means "divine gift" (Greek origin).

Are Jack and Theodore boy or girl names?

Jack is primarily a boy name. Theodore is primarily a boy name.