Cassiopeia is a distinctive girls' name in United States, ranking #9238 in 2019 with 11 recorded births. The name reached its all-time peak in 2022 with 18 births ranking #6502. Since 1996, the popularity has increased by 57.1%. In 2019, approximately 1 in every 152,507 girls born was named Cassiopeia. FALLING Recent data shows the name is currently falling.