Kadyn is a distinctive boys' name in United States, ranking #1655 in 2002 with 72 recorded births. The name reached its all-time peak in 2009 with 259 births ranking #836. Since 1996, the popularity has increased by 928.6%. In 2002, approximately 1 in every 26,965 boys born was named Kadyn. FALLING Recent data shows the name is currently falling.