Kierstyn is a distinctive girls' name in United States, ranking #4201 in 2016 with 35 recorded births. The name reached its all-time peak in 2007 with 135 births ranking #1649. Since 1996, the popularity has decreased by 56.8%. In 2016, approximately 1 in every 50,614 girls born was named Kierstyn. RISING Recent data shows the name is currently rising.