Kierstyn is a distinctive girls' name in United States, ranking #2955 in 2013 with 57 recorded births. The name reached its all-time peak in 2007 with 135 births ranking #1649. Since 1996, the popularity has decreased by 29.6%. In 2013, approximately 1 in every 30,779 girls born was named Kierstyn. RISING Recent data shows the name is currently rising.