Cassandra is of Greek origin, derived from the mythological figure Cassandra, a princess of Troy who had the gift of prophecy but was cursed so that no one believed her predictions. The name means "she excels over men," reflecting Cassandra's exceptional wisdom and foresight. It gained prominence in English-speaking countries during the late 19th century.
"Cassandra had a notable increase in popularity between 1969 and 1974, with six times as many newborns named Cassandra in the latter year."