Caidyn is a distinctive boys' name in United States, ranking #2788 in 2006 with 41 recorded births. This places Caidyn in the top 20% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2011 with 64 births ranking #2081. In 2006, approximately 1 in every 50,125 boys born was named Caidyn. FALLING Recent data shows the name is currently falling.