Kayci is a distinctive girls' name in United States, ranking #3748 in 2007 with 43 recorded births. The name reached its all-time peak in 1998 with 51 births ranking #2677. Since 1996, the popularity has increased by 26.5%. In 2007, approximately 1 in every 44,708 girls born was named Kayci. FALLING Recent data shows the name is currently falling.