Kassidy is a distinctive girls' name in United States, ranking #599 in 2018 with 508 recorded births. The name reached its all-time peak in 2000 with 1,007 births ranking #314. Since 1996, the popularity has decreased by 13.3%. In 2018, approximately 1 in every 3,347 girls born was named Kassidy. FALLING Recent data shows the name is currently falling.