Callister vs Justus

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 #1,814 Most Popular 2 Syllables

"just, righteous, upright"

Origin: Latin

German Dutch English Christian

✓ All Clear

Callister Rank #43,579

Justus Rank #1,814

Justus is more popular, ranked #1814 vs #43579 for Callister.

Is Callister or Justus more popular?

Justus is more popular, ranked #1814 compared to Callister at #43579 in the United States.

What do Callister and Justus mean?

Callister means "defender of men" (Greek via Gaelic origin). Justus means "just, righteous, upright" (Latin origin).

Are Callister and Justus boy or girl names?

Callister is primarily a boy name. Justus is primarily a boy name.