Kierstyn is a distinctive girls' name in United States, ranking #5105 in 2019 with 26 recorded births. The name reached its all-time peak in 2007 with 135 births ranking #1649. Since 1996, the popularity has decreased by 67.9%. In 2019, approximately 1 in every 64,522 girls born was named Kierstyn. RISING Recent data shows the name is currently rising.