Kierstyn is a distinctive girls' name in United States, ranking #1522 in 2004 with 132 recorded births. The name reached its all-time peak in 2007 with 135 births ranking #1649. Since 1996, the popularity has increased by 63.0%. In 2004, approximately 1 in every 13,910 girls born was named Kierstyn. RISING Recent data shows the name is currently rising.