Callister vs Kais

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 #3,926 Most Popular 1 Syllable

"firm, steadfast, hard"

Origin: Arabic

Arabic Tunisian Lebanese Turkish

✓ All Clear

Callister Rank #43,579

Kais Rank #3,926

Kais is more popular, ranked #3926 vs #43579 for Callister.

Is Callister or Kais more popular?

Kais is more popular, ranked #3926 compared to Callister at #43579 in the United States.

What do Callister and Kais mean?

Callister means "defender of men" (Greek via Gaelic origin). Kais means "firm, steadfast, hard" (Arabic origin).

Are Callister and Kais boy or girl names?

Callister is primarily a boy name. Kais is primarily a boy name.