Cassady is a distinctive girls' name in United States, ranking #2223 in 1998 with 64 recorded births. The name reached its all-time peak in 1999 with 67 births ranking #2226. Since 1996, the popularity has increased by 56.1%. In 1998, approximately 1 in every 27,608 girls born was named Cassady. FALLING Recent data shows the name is currently falling.