Jostyn is a distinctive girls' name in United States, ranking #13665 in 2005 with 7 recorded births. This places Jostyn in the bottom 29% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2005 with 7 births ranking #13665. In 2005, approximately 1 in every 263,957 girls born was named Jostyn. STABLE Recent data shows the name is currently stable.