1) English girl name 
Kayci is an English name for girls. The meaning is `alert, watchful` The name Kayci is most commonly given to Scottish girls. (4 times more often than to American girls.) What do they use in other countries? Casey (English) Cas Casen Kasey (English) Kace Kacey (English) Cass (English) Kayce Kaycee (English ) Kaci (English) Cayce Cassandre (French) ...