Kelsy is a distinctive girls' name in United States, ranking #2310 in 2003 with 73 recorded births. The name reached its all-time peak in 1996 with 142 births ranking #1233. Since 1996, the popularity has decreased by 48.6%. In 2003, approximately 1 in every 25,028 girls born was named Kelsy. RISING Recent data shows the name is currently rising.