Kayci is a distinctive girls' name in United States, ranking #4660 in 2015 with 30 recorded births. The name reached its all-time peak in 1998 with 51 births ranking #2677. Since 1996, the popularity has decreased by 11.8%. In 2015, approximately 1 in every 59,488 girls born was named Kayci. FALLING Recent data shows the name is currently falling.