Kaydn is a distinctive girls' name in United States, ranking #16622 in 2001 with 5 recorded births. This places Kaydn in the bottom 8% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2006 with 8 births ranking #12975. In 2001, approximately 1 in every 360,112 girls born was named Kaydn. STABLE Recent data shows the name is currently stable.