Cassiopeia is a distinctive girls' name in United States, ranking #9958 in 1997 with 8 recorded births. The name reached its all-time peak in 2022 with 18 births ranking #6502. Since 1996, the popularity has increased by 14.3%. In 1997, approximately 1 in every 217,582 girls born was named Cassiopeia. FALLING Recent data shows the name is currently falling.