Kierstyn is a distinctive girls' name in United States, ranking #3666 in 2017 with 42 recorded births. The name reached its all-time peak in 2007 with 135 births ranking #1649. Since 1996, the popularity has decreased by 48.1%. In 2017, approximately 1 in every 41,092 girls born was named Kierstyn. RISING Recent data shows the name is currently rising.