Meaning A girl's name of Greek origin, it means "Form of Cassandra Unheeded prophetess." Origin of Cassondra Greek Popular Middle Names Pronunciation 🔊 Listen Cassondra Similar Names Cassandrea Cassaundra Cassi Kassandra Kasondra Kassondra Kasaundra Cibil Sibella Sybilla Year by Year Popularity of Cassondra