Oslo vs Callister

Baby Name Comparison — 2026

Oslo

Boy #1,932 Most Popular 2 Syllables

"meadow of the gods"

Origin: Old Norse

Norwegian Scandinavian American

✓ All Clear

Boy #43,579 Most Popular 3 Syllables

"defender of men"

Origin: Greek via Gaelic

Scottish Manx Irish

✓ All Clear

Oslo Rank #1,932

Callister Rank #43,579

Oslo is more popular, ranked #1932 vs #43579 for Callister.

Is Oslo or Callister more popular?

Oslo is more popular, ranked #1932 compared to Callister at #43579 in the United States.

What do Oslo and Callister mean?

Oslo means "meadow of the gods" (Old Norse origin). Callister means "defender of men" (Greek via Gaelic origin).

Are Oslo and Callister boy or girl names?

Oslo is primarily a boy name. Callister is primarily a boy name.