Cassi \c(as)-si\ as a girl's name is a variant of Cassandra (Greek), Cassie (English), Catherine (Greek) and Katherine (Greek), and the meaning of Cassi is "man's defender, warrior; pure".

The baby name Cassi sounds like Cassy, Caysi, Casse, Cass, Casi, Caisi, Kassi and Cassia. Other similar baby names are Cissi, Kassy, Kasi, Casia, Casha, Casey, Assi, Cadi, Cai, Caiti, Calli, Cali, Cami, Cammi, Cari, Carri, Cason, Kaysi, Kasci, Cazzi, Caysie, Cayse, Cayci, Casy, Cassye, Cassey, Cassee, Casie, Casen, Casee, Cascy, Caisie, Caci, Kassie, Cas, Cassidy, Cassity, Cassidi, Cassadi, Kasse, Kassia, Kass, Cati, Cathi, Cissie, Chassy, Chassie, Classie, Daysi, Daisi, Lyssi, Lissi, Jessi, Lassie, Cissy, Tassie, Tassa and Tessi.