Kellan vs Billy

Baby Name Comparison — 2026

Kellan

Boy #919 Most Popular 2 Syllables

"slender, bright-headed"

Origin: Irish Gaelic

Irish Scottish American

✓ All Clear

Boy #1,051 Most Popular 2 Syllables

"resolute protector"

Origin: Old German via Norman French

English American Australian Irish

✓ All Clear

Kellan Rank #919

Billy Rank #1,051

Kellan is more popular, ranked #919 vs #1051 for Billy.

Is Kellan or Billy more popular?

Kellan is more popular, ranked #919 compared to Billy at #1051 in the United States.

What do Kellan and Billy mean?

Kellan means "slender, bright-headed" (Irish Gaelic origin). Billy means "resolute protector" (Old German via Norman French origin).

Are Kellan and Billy boy or girl names?

Kellan is primarily a boy name. Billy is primarily a boy name.