Cassady is a distinctive girls' name in United States, ranking #6613 in 2011 with 19 recorded births. The name reached its all-time peak in 1999 with 67 births ranking #2226. Since 1996, the popularity has decreased by 53.7%. In 2011, approximately 1 in every 92,569 girls born was named Cassady. FALLING Recent data shows the name is currently falling.