Cassie is a distinctive girls' name in United States, ranking #1260 in 2015 with 194 recorded births. The name reached its all-time peak in 1998 with 979 births ranking #310. Since 1996, the popularity has decreased by 70.2%. In 2015, approximately 1 in every 9,199 girls born was named Cassie. STABLE Recent data shows the name is currently stable.