Kelsey is a distinctive boys' name in United States, ranking #1324 in 1999 with 91 recorded births. The name reached its all-time peak in 1996 with 140 births ranking #932. Since 1996, the popularity has decreased by 35.0%. In 1999, approximately 1 in every 21,100 boys born was named Kelsey. RISING Recent data shows the name is currently rising.