Kellsie is a distinctive girls' name in United States, ranking #5928 in 2003 with 20 recorded births. The name reached its all-time peak in 1996 with 43 births ranking #2825. Since 1996, the popularity has decreased by 53.5%. In 2003, approximately 1 in every 91,353 girls born was named Kellsie. FALLING Recent data shows the name is currently falling.