Caidyn is a distinctive girls' name in United States, ranking #4393 in 2005 with 31 recorded births. This places Caidyn in the top 23% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2008 with 39 births ranking #4023. In 2005, approximately 1 in every 59,603 girls born was named Caidyn. STABLE Recent data shows the name is currently stable.