Though it means “curly-headed,” plenty of straight-haired or no-haired babies are given the name Cassidy. It’s an Irish surname that comes from Ó Caiside (“son of Caiside”); the prefix “cas” means “curly haired” in Gaelic. With unisex names, one gender usually dominates and, with Cassidy, the girls have grabbed on and aren’t letting go. But they relented long enough to let Barry Reese adopt it as his stage name to become the successful rap artist Cassidy in 2004.

Famous Cassidys

Wondering who else shares this name? Check out these well known people who made this baby name famous.
  • Ted Cassidy

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Source: Social Security Administration

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