Cassidy is a distinctive boys' name in United States, ranking #2680 in 2022 with 49 recorded births. The name reached its all-time peak in 1996 with 78 births ranking #1371. Since 1996, the popularity has decreased by 37.2%. In 2022, approximately 1 in every 35,599 boys born was named Cassidy. STABLE Recent data shows the name is currently stable.