Billy vs Kasey

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 #1,165 Most Popular 2 Syllables

"brave in battle"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Billy Rank #1,051

Kasey Rank #1,165

Billy is more popular, ranked #1051 vs #1165 for Kasey.

Is Billy or Kasey more popular?

Billy is more popular, ranked #1051 compared to Kasey at #1165 in the United States.

What do Billy and Kasey mean?

Billy means "resolute protector" (Old German via Norman French origin). Kasey means "brave in battle" (Irish Gaelic origin).

Are Billy and Kasey boy or girl names?

Billy is primarily a boy name. Kasey is primarily a boy name.