Kassidy is a distinctive boys' name in United States, ranking #5819 in 2011 with 15 recorded births. The name reached its all-time peak in 2017 with 20 births ranking #4843. Since 1996, the popularity has increased by 114.3%. In 2011, approximately 1 in every 126,599 boys born was named Kassidy. STABLE Recent data shows the name is currently stable.