Callister vs Simon

Baby Name Comparison — 2026

Callister

Boy #43,579 Most Popular 3 Syllables

"defender of men"

Origin: Greek via Gaelic

Scottish Manx Irish

✓ All Clear

Boy #251 Most Popular 2 Syllables

"he has heard, God has heard"

Origin: Hebrew

English French German Scandinavian Jewish

✓ All Clear

Callister Rank #43,579

Simon Rank #251

Simon is more popular, ranked #251 vs #43579 for Callister.

Is Callister or Simon more popular?

Simon is more popular, ranked #251 compared to Callister at #43579 in the United States.

What do Callister and Simon mean?

Callister means "defender of men" (Greek via Gaelic origin). Simon means "he has heard, God has heard" (Hebrew origin).

Are Callister and Simon boy or girl names?

Callister is primarily a boy name. Simon is primarily a boy name.