Dillon vs Dennis

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 #708 Most Popular 2 Syllables

"follower of Dionysus"

Origin: Greek

English French German Irish

✓ All Clear

Dillon Rank #870

Dennis Rank #708

Dennis is more popular, ranked #708 vs #870 for Dillon.

Is Dillon or Dennis more popular?

Dennis is more popular, ranked #708 compared to Dillon at #870 in the United States.

What do Dillon and Dennis mean?

Dillon means "great tide, son of the sea" (Welsh origin). Dennis means "follower of Dionysus" (Greek origin).

Are Dillon and Dennis boy or girl names?

Dillon is primarily a boy name. Dennis is primarily a boy name.