Kaio vs Callister

Baby Name Comparison — 2026

Kaio

Boy #4,096 Most Popular 2 Syllables

"rejoice, be happy"

Origin: Latin

Brazilian Portuguese Japanese American

✓ All Clear

Boy #43,579 Most Popular 3 Syllables

"defender of men"

Origin: Greek via Gaelic

Scottish Manx Irish

✓ All Clear

Kaio Rank #4,096

Callister Rank #43,579

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

Is Kaio or Callister more popular?

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

What do Kaio and Callister mean?

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

Are Kaio and Callister boy or girl names?

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