Kadyn is a distinctive boys' name in United States, ranking #1880 in 2001 with 59 recorded births. The name reached its all-time peak in 2009 with 259 births ranking #836. Since 1996, the popularity has increased by 742.9%. In 2001, approximately 1 in every 32,929 boys born was named Kadyn. FALLING Recent data shows the name is currently falling.