Cassie is a distinctive girls' name in England & Wales, ranking #584 in 2013 with 70 recorded births. The name reached its all-time peak in 2008 with 133 births ranking #336. Since 1996, the popularity has decreased by 17.6%. In 2013, approximately 1 in every 4,406 girls born was named Cassie. FALLING Recent data shows the name is currently falling.