Billy vs Foster

Baby Name Comparison — 2026

Billy

Boy #1,051 Most Popular 2 Syllables

"resolute protector"

Origin: Old German via Norman French

English American Australian Irish

✓ All Clear

Boy #1,077 Most Popular 2 Syllables

"forest keeper, forester"

Origin: Old English

English American

✓ All Clear

Billy Rank #1,051

Foster Rank #1,077

Billy is more popular, ranked #1051 vs #1077 for Foster.

Is Billy or Foster more popular?

Billy is more popular, ranked #1051 compared to Foster at #1077 in the United States.

What do Billy and Foster mean?

Billy means "resolute protector" (Old German via Norman French origin). Foster means "forest keeper, forester" (Old English origin).

Are Billy and Foster boy or girl names?

Billy is primarily a boy name. Foster is primarily a boy name.