Cassidy vs Aidyn

Baby Name Comparison — 2026

Cassidy

Boy #2,323 Most Popular 3 Syllables

"curly-haired"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Boy #2,355 Most Popular 2 Syllables

"little fire"

Origin: Old Irish

American Irish Celtic

✓ All Clear

Cassidy Rank #2,323

Aidyn Rank #2,355

Cassidy is more popular, ranked #2323 vs #2355 for Aidyn.

Is Cassidy or Aidyn more popular?

Cassidy is more popular, ranked #2323 compared to Aidyn at #2355 in the United States.

What do Cassidy and Aidyn mean?

Cassidy means "curly-haired" (Irish Gaelic origin). Aidyn means "little fire" (Old Irish origin).

Are Cassidy and Aidyn boy or girl names?

Cassidy is primarily a boy name. Aidyn is primarily a boy name.