Kierstyn is a distinctive girls' name in United States, ranking #2010 in 2003 with 90 recorded births. The name reached its all-time peak in 2007 with 135 births ranking #1649. Since 1996, the popularity has increased by 11.1%. In 2003, approximately 1 in every 20,301 girls born was named Kierstyn. RISING Recent data shows the name is currently rising.