Meaning and Name Origin
Kaysi \ka(y)-si\ as a girls' name has the meaning "alert, watchful". Kaysi is a derivative of Casey (Irish, Gaelic): from the male Gaelic name Cathasaigh. A birth name for females which is seldom used.
Kaysi 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, Kayci, Kaysee, Kaysey, Kaysie, Kaysy and Kaysyee.
Kaysi is an uncommon given name for females. Kaysi is an equally unique last name for all people. (2000 U.S. Census)
Below is a charted analysis of the usage of Kaysi and affiliated names. Popular varying forms of Kaysi (#unlisted) rated in the Top 1000 are Casey (#792 in 2014), Kasey, Kasie, Kaycee, Kacy, Kacie, Casie, Kacey and Kaci. These girl names were at the height of their popularity in 1991 and have become much less popular since, with the versions Casey, Kasey, Kacie, Kaci and Kacey falling out of style. (2014 Birth Statistics)
Kaysi is pronounced similarly to Cassi, Kassi, Kassia, Kassie▼, Kassy and Kasy. Other suggested similar baby names are Daysi, Kas, Kasia, Kass, Kasse, Kaydi and Kayli▼. These names tend to be more frequently used than Kaysi.