Callister vs Kaio

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 #4,096 Most Popular 2 Syllables

"rejoice, be happy"

Origin: Latin

Brazilian Portuguese Japanese American

✓ All Clear

Callister Rank #43,579

Kaio Rank #4,096

Kaio is more popular, ranked #4096 vs #43579 for Callister.

Is Callister or Kaio more popular?

Kaio is more popular, ranked #4096 compared to Callister at #43579 in the United States.

What do Callister and Kaio mean?

Callister means "defender of men" (Greek via Gaelic origin). Kaio means "rejoice, be happy" (Latin origin).

Are Callister and Kaio boy or girl names?

Callister is primarily a boy name. Kaio is primarily a boy name.