Kelsi is a distinctive girls' name in United States, ranking #687 in 1999 with 330 recorded births. The name reached its all-time peak in 1996 with 520 births ranking #474. Since 1996, the popularity has decreased by 36.5%. In 1999, approximately 1 in every 5,375 girls born was named Kelsi. STABLE Recent data shows the name is currently stable.