Cassey is a distinctive girls' name in United States, ranking #11572 in 2019 with 8 recorded births. The name reached its all-time peak in 1998 with 48 births ranking #2764. Since 1996, the popularity has decreased by 78.4%. In 2019, approximately 1 in every 209,697 girls born was named Cassey. FALLING Recent data shows the name is currently falling.