Kierstyn is a distinctive girls' name in United States, ranking #3148 in 2012 with 53 recorded births. The name reached its all-time peak in 2007 with 135 births ranking #1649. Since 1996, the popularity has decreased by 34.6%. In 2012, approximately 1 in every 33,222 girls born was named Kierstyn. RISING Recent data shows the name is currently rising.