Cassidey \c(a)-ssi-dey\ as a girl's name (also used as boy's name Cassidey), is a variant of Cassidy (Irish, Gaelic), and the meaning of Cassidey is "curly-headed".

The baby name Cassidey sounds like Cassidee and Cassiddy. Other similar baby names are Cassie, Cassey, Kassodey, Kassidy, Kassidee, Kassadey, Cassity, Cassidie, Cassidi, Casseday, Cassady, Casidy, Casidee and Chassidy.