Kelsey is a popular girls' name in United States, ranking #56 in 1998 with 5,550 recorded births. The name reached its all-time peak in 1996 with 7,655 births ranking #36. Since 1996, the popularity has decreased by 27.5%. In 1998, approximately 1 in every 318 girls born was named Kelsey. FALLING Recent data shows the name is currently falling.