Kassidy is a distinctive boys' name in United States, ranking #7214 in 1998 with 8 recorded births. The name reached its all-time peak in 2017 with 20 births ranking #4843. Since 1996, the popularity has increased by 14.3%. In 1998, approximately 1 in every 238,915 boys born was named Kassidy. STABLE Recent data shows the name is currently stable.