Allan vs Billy

Baby Name Comparison — 2026

Allan

Boy #854 Most Popular 2 Syllables

"rock, harmony"

Origin: Celtic/Brythonic

Scottish English French American

✓ All Clear

Boy #1,051 Most Popular 2 Syllables

"resolute protector"

Origin: Old German via Norman French

English American Australian Irish

✓ All Clear

Allan Rank #854

Billy Rank #1,051

Allan is more popular, ranked #854 vs #1051 for Billy.

Is Allan or Billy more popular?

Allan is more popular, ranked #854 compared to Billy at #1051 in the United States.

What do Allan and Billy mean?

Allan means "rock, harmony" (Celtic/Brythonic origin). Billy means "resolute protector" (Old German via Norman French origin).

Are Allan and Billy boy or girl names?

Allan is primarily a boy name. Billy is primarily a boy name.