Callister vs Cassian

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 #617 Most Popular 3 Syllables

"of the Cassian family (Roman gens)"

Origin: Latin

English American European

✓ All Clear

Callister Rank #43,579

Cassian Rank #617

Cassian is more popular, ranked #617 vs #43579 for Callister.

Is Callister or Cassian more popular?

Cassian is more popular, ranked #617 compared to Callister at #43579 in the United States.

What do Callister and Cassian mean?

Callister means "defender of men" (Greek via Gaelic origin). Cassian means "of the Cassian family (Roman gens)" (Latin origin).

Are Callister and Cassian boy or girl names?

Callister is primarily a boy name. Cassian is primarily a boy name.