Callister vs Merlin

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 #2,083 Most Popular 2 Syllables

"sea fortress"

Origin: Brittonic/Welsh

Welsh English French Medieval

✓ All Clear

Callister Rank #43,579

Merlin Rank #2,083

Merlin is more popular, ranked #2083 vs #43579 for Callister.

Is Callister or Merlin more popular?

Merlin is more popular, ranked #2083 compared to Callister at #43579 in the United States.

What do Callister and Merlin mean?

Callister means "defender of men" (Greek via Gaelic origin). Merlin means "sea fortress" (Brittonic/Welsh origin).

Are Callister and Merlin boy or girl names?

Callister is primarily a boy name. Merlin is primarily a boy name.