Casey - Name Meaning and Origin

The boy's and girl's name Casey \c(a)-sey\ is pronounced KAY-see. It is of Irish and Gaelic origin, and its meaning is "alert, watchful". From the male Gaelic name Cathasaigh. Also variant of Cassie. Made famous by the song about the engineer of the Cannon Ball Express, Casey Jones. Caycee and Cacia are short forms of Acacia.

Casey has 33 variant forms: Cacey, Cacia, Cacie, Caisee, Caisey, Caisi, Caisie, Casee, Casi, Casie, Caycee, Caycey, Cayci, Caycie, Caysee, Caysey, Caysi, Caycie, Kacey, Kacie, Kacy, Kacyee, Kasey, Kaycee, Kaycey, Kayci, Kaycie, Kaysee, Kaysey, Kaysi, Kaysie, Kaysy and Kaysyee.

For more information, see also the related name Kelsey.

Baby names that sound like Casey are Cassy and Cassey.

Casey is a very popular female first name and a very popular surname (source: 1990 U.S. Census). Displayed below is the baby name popularity trend for the girl's name Casey. Click here to compare Casey with related baby names.