Nio vs Callister

Baby Name Comparison — 2026

Nio

Boy #6,449 Most Popular 2 Syllables

"benevolent king"

Origin: Japanese

Japanese Spanish Italian

✓ All Clear

Boy #43,579 Most Popular 3 Syllables

"defender of men"

Origin: Greek via Gaelic

Scottish Manx Irish

✓ All Clear

Nio Rank #6,449

Callister Rank #43,579

Nio is more popular, ranked #6449 vs #43579 for Callister.

Is Nio or Callister more popular?

Nio is more popular, ranked #6449 compared to Callister at #43579 in the United States.

What do Nio and Callister mean?

Nio means "benevolent king" (Japanese origin). Callister means "defender of men" (Greek via Gaelic origin).

Are Nio and Callister boy or girl names?

Nio is primarily a boy name. Callister is primarily a boy name.