Cassady is a distinctive girls' name in United States, ranking #7136 in 2008 with 18 recorded births. The name reached its all-time peak in 1999 with 67 births ranking #2226. Since 1996, the popularity has decreased by 56.1%. In 2008, approximately 1 in every 105,040 girls born was named Cassady. FALLING Recent data shows the name is currently falling.