Cassady is a distinctive girls' name in United States, ranking #2519 in 1997 with 51 recorded births. The name reached its all-time peak in 1999 with 67 births ranking #2226. Since 1996, the popularity has increased by 24.4%. In 1997, approximately 1 in every 34,131 girls born was named Cassady. FALLING Recent data shows the name is currently falling.