Cassiopeia is a distinctive girls' name in United States, ranking #12504 in 2010 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 2010, approximately 1 in every 222,166 girls born was named Cassiopeia. FALLING Recent data shows the name is currently falling.