Kelsei is a distinctive girls' name in United States, ranking #15997 in 2010 with 6 recorded births. The name reached its all-time peak in 1996 with 19 births ranking #5179. Since 1996, the popularity has decreased by 68.4%. In 2010, approximately 1 in every 296,221 girls born was named Kelsei. RISING Recent data shows the name is currently rising.