Kayci is a distinctive girls' name in United States, ranking #3007 in 1997 with 40 recorded births. The name reached its all-time peak in 1998 with 51 births ranking #2677. Since 1996, the popularity has increased by 17.6%. In 1997, approximately 1 in every 43,516 girls born was named Kayci. FALLING Recent data shows the name is currently falling.