Callister vs Theseus

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 #3,732 Most Popular 3 Syllables

"to set, to place, to establish"

Origin: Ancient Greek

Greek English Classical

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Callister Rank #43,579

Theseus Rank #3,732

Theseus is more popular, ranked #3732 vs #43579 for Callister.

Is Callister or Theseus more popular?

Theseus is more popular, ranked #3732 compared to Callister at #43579 in the United States.

What do Callister and Theseus mean?

Callister means "defender of men" (Greek via Gaelic origin). Theseus means "to set, to place, to establish" (Ancient Greek origin).

Are Callister and Theseus boy or girl names?

Callister is primarily a boy name. Theseus is primarily a boy name.