Isaac vs Thomas

Baby Name Comparison — 2026

Isaac

Boy #40 Most Popular 3 Syllables

"He will laugh; laughter"

Origin: Hebrew

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Boy #39 Most Popular 2 Syllables

"Twin"

Origin: Aramaic

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✓ All Clear

Isaac Rank #40

Thomas Rank #39

Thomas is more popular, ranked #39 vs #40 for Isaac.

Is Isaac or Thomas more popular?

Thomas is more popular, ranked #39 compared to Isaac at #40 in the United States.

What do Isaac and Thomas mean?

Isaac means "He will laugh; laughter" (Hebrew origin). Thomas means "Twin" (Aramaic origin).

Are Isaac and Thomas boy or girl names?

Isaac is primarily a boy name. Thomas is primarily a boy name.