Kelsy is a distinctive girls' name in United States, ranking #5937 in 2017 with 21 recorded births. The name reached its all-time peak in 1996 with 142 births ranking #1233. Since 1996, the popularity has decreased by 85.2%. In 2017, approximately 1 in every 82,185 girls born was named Kelsy. RISING Recent data shows the name is currently rising.