Kierstyn is a distinctive girls' name in United States, ranking #4901 in 2021 with 27 recorded births. The name reached its all-time peak in 2007 with 135 births ranking #1649. Since 1996, the popularity has decreased by 66.7%. In 2021, approximately 1 in every 60,730 girls born was named Kierstyn. RISING Recent data shows the name is currently rising.