What does Kayce mean?
Kayce \ka(y)-ce\ as a name for girls. Kayce's name origins are Irish, Gaelic and American, and Kayce means "alert, watchful". Kayce is a variation of Casey (Irish, Gaelic): from the male Gaelic name Cathasaigh. Kayce is also a derivative of Kacie (American).
Kayce has 37 more alternative forms via Casey, Kacie: Cacey, Caci, Cacie, Cacy, Cascy, Casee, Casie, Caycee, Caycey, Cayci, Caycie, Caysee, Caysey, Caysi, Caysie, Kacee, Kacey▼, Kaci▼, Kacia, Kacy, Kacye, Kacyee, Kasci, Kasee, Kasey▼, Kasi, Kasie, Kaycee, Kaycey, Kayci, Kaycie, Kaysee, Kaysey, Kaysi, Kaysie, Kaysy and Kaysyee.
Kayce is a somewhat popular first name for females (#3556 out of 4276, Top 83%) but a unique last name for both adults and children. (2000 U.S. Census)
Casey (#792 last year), Casie, Kacey, Kaci, Kacie, Kacy, Kasey, Kasie and Kaycee are the popular alternative forms of Kayce (#unlisted). These girl names reached the top of their popularity in the year 1991 (usage of 0.3521%) and have become much less widespread since (usage 0.0231%, down 93.4%), with the forms Casey, Kacey, Kaci, Kacie and Kasey falling out of style. Below is a charted analysis of the popularity of Kayce and affiliated names. (Top 1000 Baby Names Records, 2014)