Kadyn is a distinctive boys' name in United States, ranking #3148 in 1999 with 26 recorded births. This places Kadyn in the top 27% 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 259 births ranking #836. Since 1996, the popularity has increased by 271.4%. In 1999, approximately 1 in every 73,850 boys born was named Kadyn. FALLING Recent data shows the name is currently falling.