Kierstyn is a distinctive girls' name in United States, ranking #1833 in 2002 with 98 recorded births. The name reached its all-time peak in 2007 with 135 births ranking #1649. Since 1996, the popularity has increased by 21.0%. In 2002, approximately 1 in every 18,335 girls born was named Kierstyn. RISING Recent data shows the name is currently rising.