Cassidy vs Erwin

Baby Name Comparison — 2026

Cassidy

Boy #2,323 Most Popular 3 Syllables

"curly-haired"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Boy #2,429 Most Popular 2 Syllables

"army friend, honorable companion"

Origin: Old High German

German Dutch English Scandinavian

✓ All Clear

Cassidy Rank #2,323

Erwin Rank #2,429

Cassidy is more popular, ranked #2323 vs #2429 for Erwin.

Is Cassidy or Erwin more popular?

Cassidy is more popular, ranked #2323 compared to Erwin at #2429 in the United States.

What do Cassidy and Erwin mean?

Cassidy means "curly-haired" (Irish Gaelic origin). Erwin means "army friend, honorable companion" (Old High German origin).

Are Cassidy and Erwin boy or girl names?

Cassidy is primarily a boy name. Erwin is primarily a boy name.