Kierstyn is a distinctive girls' name in United States, ranking #2057 in 1998 with 72 recorded births. The name reached its all-time peak in 2007 with 135 births ranking #1649. Since 1996, the popularity has decreased by 11.1%. In 1998, approximately 1 in every 24,540 girls born was named Kierstyn. RISING Recent data shows the name is currently rising.