Kadyn is a distinctive girls' name in United States, ranking #2720 in 2003 with 58 recorded births. The name reached its all-time peak in 2008 with 144 births ranking #1586. Since 1996, the popularity has increased by 544.4%. In 2003, approximately 1 in every 31,501 girls born was named Kadyn. FALLING Recent data shows the name is currently falling.