Kassidy is a distinctive boys' name in United States, ranking #5736 in 2005 with 14 recorded births. The name reached its all-time peak in 2017 with 20 births ranking #4843. Since 1996, the popularity has increased by 100.0%. In 2005, approximately 1 in every 142,653 boys born was named Kassidy. STABLE Recent data shows the name is currently stable.