What does Kayci mean?
Kayci \ka(y)-ci\ as a name for girls is of Irish, Gaelic and American origin, and the name Kayci means "alert, watchful". Kayci is a derivative of Casey (Irish, Gaelic): from the male Gaelic name Cathasaigh. Kayci is also a derivative of Kacie (American).
Kayci has 42 variants: Cacey, Caci, Cacy, Caisee, Caisey, Caisi, Caisie, Cascy, Casee, Casi, Casie, Cassee, Cassey, Cassye, Casy, Caycee, Caycey, Cayci, Caysee, Caysey, Caysi, Caysie, Kacee, Kacey▼, Kaci▼, Kacy, Kacye, Kacyee, Kaissie, Kasci, Kasee, Kasey▼, Kasi, Kasie, Kaycee, Kaycey, Kaysee, Kaysey, Kaysi, Kaysie, Kaysy and Kaysyee.
Kayci is an uncommon first name for women. Kayci is a rare surname too for both adults and children. (2000 U.S. Census)
Prominent alternative forms of Kayci (#unlisted) listed in the Top 1000 are Casey (#792 the previous year), Casie, Kacey, Kaci, Kacie, Kacy, Kasey, Kasie and Kaycee. These girl names were at the top of their popularity in 1991 (usage of 0.3521%) and have become much less popular since (usage 0.0231%, down 93.4%), with the forms Casey, Kacey, Kaci, Kacie and Kasey becoming somewhat outmoded. Displayed below is a comparison of the usage of Kayci and related names. (2014 Birth Statistics)