Kassidy is a distinctive boys' name in United States, ranking #7356 in 2007 with 11 recorded births. The name reached its all-time peak in 2017 with 20 births ranking #4843. Since 1996, the popularity has increased by 57.1%. In 2007, approximately 1 in every 188,658 boys born was named Kassidy. STABLE Recent data shows the name is currently stable.