Kayci is a distinctive girls' name in United States, ranking #4389 in 2016 with 33 recorded births. This places Kayci in the top 23% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1998 with 51 births ranking #2677. In 2016, approximately 1 in every 53,681 girls born was named Kayci. FALLING Recent data shows the name is currently falling.