Callister vs Kepler

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 #4,441 Most Popular 2 Syllables

"hat maker, cap maker"

Origin: German

American German English

✓ All Clear

Callister Rank #43,579

Kepler Rank #4,441

Kepler is more popular, ranked #4441 vs #43579 for Callister.

Is Callister or Kepler more popular?

Kepler is more popular, ranked #4441 compared to Callister at #43579 in the United States.

What do Callister and Kepler mean?

Callister means "defender of men" (Greek via Gaelic origin). Kepler means "hat maker, cap maker" (German origin).

Are Callister and Kepler boy or girl names?

Callister is primarily a boy name. Kepler is primarily a boy name.