Dillon vs Billy

Baby Name Comparison — 2026

Dillon

Boy #870 Most Popular 2 Syllables

"great tide, son of the sea"

Origin: Welsh

Irish Welsh American English

✓ All Clear

Boy #1,051 Most Popular 2 Syllables

"resolute protector"

Origin: Old German via Norman French

English American Australian Irish

✓ All Clear

Dillon Rank #870

Billy Rank #1,051

Dillon is more popular, ranked #870 vs #1051 for Billy.

Is Dillon or Billy more popular?

Dillon is more popular, ranked #870 compared to Billy at #1051 in the United States.

What do Dillon and Billy mean?

Dillon means "great tide, son of the sea" (Welsh origin). Billy means "resolute protector" (Old German via Norman French origin).

Are Dillon and Billy boy or girl names?

Dillon is primarily a boy name. Billy is primarily a boy name.