Cassadie \c(a)-ssa-die\ as a girl's name is a variant of Cassidy (Irish, Gaelic), and the meaning of Cassadie is "curly-headed".
The baby name Cassadie sounds like Cassidie and Cassadi. Other similar baby names are Cassie, Kassidie, Kassadi, Cassidi, Cassidee, Cassady, Cassadina, Casadee and Chasadie.