Kerstyn is a distinctive girls' name in United States, ranking #10799 in 2011 with 10 recorded births. The name reached its all-time peak in 2000 with 35 births ranking #3700. Since 1996, the popularity has decreased by 64.3%. In 2011, approximately 1 in every 175,880 girls born was named Kerstyn. FALLING Recent data shows the name is currently falling.