Foster vs Casper

Baby Name Comparison — 2026

Foster

Boy #1,077 Most Popular 2 Syllables

"forest keeper, forester"

Origin: Old English

English American

✓ All Clear

Boy #881 Most Popular 2 Syllables

"treasurer, keeper of treasure"

Origin: Persian

Dutch Scandinavian German English

✓ All Clear

Foster Rank #1,077

Casper Rank #881

Casper is more popular, ranked #881 vs #1077 for Foster.

Is Foster or Casper more popular?

Casper is more popular, ranked #881 compared to Foster at #1077 in the United States.

What do Foster and Casper mean?

Foster means "forest keeper, forester" (Old English origin). Casper means "treasurer, keeper of treasure" (Persian origin).

Are Foster and Casper boy or girl names?

Foster is primarily a boy name. Casper is primarily a boy name.