Cassie is a distinctive girls' name in England & Wales, ranking #537 in 2021 with 75 recorded births. The name reached its all-time peak in 2008 with 133 births ranking #336. Since 1996, the popularity has decreased by 11.8%. In 2021, approximately 1 in every 3,654 girls born was named Cassie. FALLING Recent data shows the name is currently falling.