Kasey vs Billy

Baby Name Comparison — 2026

Kasey

Boy #1,165 Most Popular 2 Syllables

"brave in battle"

Origin: Irish Gaelic

Irish American English

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Boy #1,051 Most Popular 2 Syllables

"resolute protector"

Origin: Old German via Norman French

English American Australian Irish

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Kasey Rank #1,165

Billy Rank #1,051

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

Is Kasey or Billy more popular?

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

What do Kasey and Billy mean?

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

Are Kasey and Billy boy or girl names?

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