Updated August 7, 2024 Share: Girl name origins & meanings Irish : Curly headed; cleverCeltic, Gaelic : Clever Girl name variations Cassidy Cassady Cassidey Kassadey Kassodey Cassir Kasadee Kassydi Boy name origins & meanings Irish : Clever; curly haired Boy name variations Kass Kassidi Kassidie Kassie How Popular Is The Name Kassidy