Isaac vs Callister

Baby Name Comparison — 2026

Isaac

Boy #40 Most Popular 3 Syllables

"He will laugh; laughter"

Origin: Hebrew

English Jewish Spanish French

✓ All Clear

Boy #43,579 Most Popular 3 Syllables

"defender of men"

Origin: Greek via Gaelic

Scottish Manx Irish

✓ All Clear

Isaac Rank #40

Callister Rank #43,579

Isaac is more popular, ranked #40 vs #43579 for Callister.

Is Isaac or Callister more popular?

Isaac is more popular, ranked #40 compared to Callister at #43579 in the United States.

What do Isaac and Callister mean?

Isaac means "He will laugh; laughter" (Hebrew origin). Callister means "defender of men" (Greek via Gaelic origin).

Are Isaac and Callister boy or girl names?

Isaac is primarily a boy name. Callister is primarily a boy name.