Billy vs Kacey

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 #1,045 Most Popular 2 Syllables

"brave in battle, vigilant"

Origin: Irish Gaelic

Irish American

✓ All Clear

Billy Rank #1,051

Kacey Rank #1,045

Kacey is more popular, ranked #1045 vs #1051 for Billy.

Is Billy or Kacey more popular?

Kacey is more popular, ranked #1045 compared to Billy at #1051 in the United States.

What do Billy and Kacey mean?

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

Are Billy and Kacey boy or girl names?

Billy is primarily a boy name. Kacey is primarily a boy name.