Callister vs Oskar

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 #1,722 Most Popular 2 Syllables

"divine spear, god's spear"

Origin: Old Norse ás + geirr

Scandinavian German Polish Irish

✓ All Clear

Callister Rank #43,579

Oskar Rank #1,722

Oskar is more popular, ranked #1722 vs #43579 for Callister.

Is Callister or Oskar more popular?

Oskar is more popular, ranked #1722 compared to Callister at #43579 in the United States.

What do Callister and Oskar mean?

Callister means "defender of men" (Greek via Gaelic origin). Oskar means "divine spear, god's spear" (Old Norse ás + geirr origin).

Are Callister and Oskar boy or girl names?

Callister is primarily a boy name. Oskar is primarily a boy name.