Kierstyn is a distinctive girls' name in United States, ranking #5400 in 2020 with 23 recorded births. The name reached its all-time peak in 2007 with 135 births ranking #1649. Since 1996, the popularity has decreased by 71.6%. In 2020, approximately 1 in every 70,240 girls born was named Kierstyn. RISING Recent data shows the name is currently rising.