Kais vs Callister

Baby Name Comparison — 2026

Kais

Boy #3,926 Most Popular 1 Syllable

"firm, steadfast, hard"

Origin: Arabic

Arabic Tunisian Lebanese Turkish

✓ All Clear

Boy #43,579 Most Popular 3 Syllables

"defender of men"

Origin: Greek via Gaelic

Scottish Manx Irish

✓ All Clear

Kais Rank #3,926

Callister Rank #43,579

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

Is Kais or Callister more popular?

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

What do Kais and Callister mean?

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

Are Kais and Callister boy or girl names?

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