Kassidy is a distinctive boys' name in United States, ranking #5874 in 1997 with 10 recorded births. The name reached its all-time peak in 2017 with 20 births ranking #4843. Since 1996, the popularity has increased by 42.9%. In 1997, approximately 1 in every 188,509 boys born was named Kassidy. STABLE Recent data shows the name is currently stable.