Kacey vs Billy

Baby Name Comparison — 2026

Kacey

Boy #1,045 Most Popular 2 Syllables

"brave in battle, vigilant"

Origin: Irish Gaelic

Irish American

✓ All Clear

Boy #1,051 Most Popular 2 Syllables

"resolute protector"

Origin: Old German via Norman French

English American Australian Irish

✓ All Clear

Kacey Rank #1,045

Billy Rank #1,051

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

Is Kacey or Billy more popular?

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

What do Kacey and Billy mean?

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

Are Kacey and Billy boy or girl names?

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