Cassie is a distinctive girls' name in England & Wales, ranking #555 in 2020 with 71 recorded births. The name reached its all-time peak in 2008 with 133 births ranking #336. Since 1996, the popularity has decreased by 16.5%. In 2020, approximately 1 in every 3,780 girls born was named Cassie. FALLING Recent data shows the name is currently falling.