Cassidee is a distinctive girls' name in United States, ranking #8225 in 2019 with 13 recorded births. The name reached its all-time peak in 2014 with 38 births ranking #3939. Since 1996, the popularity has decreased by 23.5%. In 2019, approximately 1 in every 129,044 girls born was named Cassidee. FALLING Recent data shows the name is currently falling.