Cassye \c(a)-ss-ye\ as a girl's name is a variant of Casey (Irish, Gaelic), and the meaning of Cassye is "alert, watchful".
The baby name Cassye sounds like Cassy, Cassie, Cassee and Casse. Other similar baby names are Kassy, Cadye, Caysie, Caysee, Cayse, Casy, Cassey, Cass, Casie, Casee, Cascy, Caisie, Caisee, Kassie, Cassi, Cassia, Kasse, Caye, Cathye and Jessye.