Kayci is a distinctive girls' name in United States, ranking #3450 in 2001 with 39 recorded births. The name reached its all-time peak in 1998 with 51 births ranking #2677. Since 1996, the popularity has increased by 14.7%. In 2001, approximately 1 in every 46,168 girls born was named Kayci. FALLING Recent data shows the name is currently falling.