Rex vs Issac

Baby Name Comparison — 2026

Rex

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Boy #856 Most Popular 2 Syllables

"laughter"

Origin: Hebrew

English American Jewish Christian African-American

✓ All Clear

Rex Rank #793

Issac Rank #856

Rex is more popular, ranked #793 vs #856 for Issac.

Is Rex or Issac more popular?

Rex is more popular, ranked #793 compared to Issac at #856 in the United States.

What do Rex and Issac mean?

Rex means "king" (Latin origin). Issac means "laughter" (Hebrew origin).

Are Rex and Issac boy or girl names?

Rex is primarily a boy name. Issac is primarily a boy name.