Kassidy is a moderately popular girls' name in United States, ranking #362 in 1997 with 765 recorded births. The name reached its all-time peak in 2000 with 1,007 births ranking #314. Since 1996, the popularity has increased by 30.5%. In 1997, approximately 1 in every 2,275 girls born was named Kassidy. FALLING Recent data shows the name is currently falling.