Callister vs Osmar

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 #2,362 Most Popular 2 Syllables

"divinely famous, famous through God"

Origin: Old English/Germanic

Portuguese Brazilian Spanish Germanic

✓ All Clear

Callister Rank #43,579

Osmar Rank #2,362

Osmar is more popular, ranked #2362 vs #43579 for Callister.

Is Callister or Osmar more popular?

Osmar is more popular, ranked #2362 compared to Callister at #43579 in the United States.

What do Callister and Osmar mean?

Callister means "defender of men" (Greek via Gaelic origin). Osmar means "divinely famous, famous through God" (Old English/Germanic origin).

Are Callister and Osmar boy or girl names?

Callister is primarily a boy name. Osmar is primarily a boy name.