Cassidy

girlIrish

Cassidy is an girl name of Irish origin, meaning “Possibly curly-haired”.

MeaningPossibly curly-haired
GenderGirl
OriginIrish
PronunciationKAS-ih-dee
TraditionModern & Classic
Used inUnited States, Canada, Australia

Meaning and origin of Cassidy

Cassidy comes from the Irish surname O Caiside, of a family from County Fermanagh. The root is often linked to cas, 'curly-haired', though some writers suggest 'clever'. As a first name it became popular in the United States in the 1980s and 1990s, influenced by the Wild West outlaw Butch Cassidy and singer David Cassidy. It is used mainly for girls today.

Is Cassidy a religious name?

Cassidy has no religious background; it is an Irish surname used as a first name.

How popular is Cassidy?

Popular in North America in the 1990s; less common now.

Gifts with the name Cassidy

As an Amazon Associate we earn from qualifying purchases. We may earn a small commission from these links, at no extra cost to you.

Spellings and variants of Cassidy

CassadyKassidyCassie

Names similar to Cassidy

More girl names

Frequently asked questions

What does the name Cassidy mean?

Cassidy means 'Possibly curly-haired'. It is of Irish origin.

Does Cassidy have a religious meaning?

Cassidy has no religious background; it is an Irish surname used as a first name.

How do you pronounce Cassidy?

Cassidy is pronounced KAS-ih-dee.

Is Cassidy a boy or girl name?

Cassidy is usually a girl name.

Updated October 2026. Spotted a mistake? Tell us.