Cassadie is a distinctive girls' name in United States, ranking #14951 in 2014 with 6 recorded births. The name reached its all-time peak in 1996 with 14 births ranking #6458. Since 1996, the popularity has decreased by 57.1%. In 2014, approximately 1 in every 297,656 girls born was named Cassadie. FALLING Recent data shows the name is currently falling.