Caysey \ca(y)-sey\ as a girl's name is a variant of Casey (Irish, Gaelic), and the meaning of Caysey is "alert, watchful".

The baby name Caysey sounds like Kaysey, Caysee, Cayse, Caycey, Cassey and Caisey. Other similar baby names are Cayley, Kasey, Caysha, Cassy, Cadey, Calley, Carey, Carrey, Kaysy, Kaysee, Kayse, Kaycey, Caysie, Caysi, Caycee, Cayce, Casy, Cassee, Casse, Casen, Casee, Cascy, Caisee, Cacey, Kassey, Caye, Catey, Caitey, Kayley, Caylee, Caley, Cailey, Chassey, Daisey, Laisey, Lassey, Maisey and Cissey.