Denny vs Casyn

Baby Name Comparison — 2026

Denny

Boy #4,471 Most Popular 2 Syllables

"follower of Dionysus (god of wine)"

Origin: Greek via Latin

American English Irish

✓ All Clear

Boy #4,583 Most Popular 2 Syllables

"vigilant, watchful"

Origin: Irish Gaelic

American Irish English

✓ All Clear

Denny Rank #4,471

Casyn Rank #4,583

Denny is more popular, ranked #4471 vs #4583 for Casyn.

Is Denny or Casyn more popular?

Denny is more popular, ranked #4471 compared to Casyn at #4583 in the United States.

What do Denny and Casyn mean?

Denny means "follower of Dionysus (god of wine)" (Greek via Latin origin). Casyn means "vigilant, watchful" (Irish Gaelic origin).

Are Denny and Casyn boy or girl names?

Denny is primarily a boy name. Casyn is primarily a boy name.