Kaydn is a distinctive boys' name in United States, ranking #7551 in 2003 with 9 recorded births. This places Kaydn in the bottom 41% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2009 with 29 births ranking #3684. In 2003, approximately 1 in every 219,474 boys born was named Kaydn. STABLE Recent data shows the name is currently stable.