Cassidy vs Cy

Baby Name Comparison — 2026

Cassidy

Boy #2,323 Most Popular 3 Syllables

"curly-haired"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Boy #2,349 Most Popular 1 Syllable

"sun, shepherd"

Origin: Old Persian (via Cyrus)

American Western Persian

✓ All Clear

Cassidy Rank #2,323

Cy Rank #2,349

Cassidy is more popular, ranked #2323 vs #2349 for Cy.

Is Cassidy or Cy more popular?

Cassidy is more popular, ranked #2323 compared to Cy at #2349 in the United States.

What do Cassidy and Cy mean?

Cassidy means "curly-haired" (Irish Gaelic origin). Cy means "sun, shepherd" (Old Persian (via Cyrus) origin).

Are Cassidy and Cy boy or girl names?

Cassidy is primarily a boy name. Cy is primarily a boy name.