Kerstyn is a distinctive girls' name in United States, ranking #8509 in 2010 with 14 recorded births. The name reached its all-time peak in 2000 with 35 births ranking #3700. Since 1996, the popularity has decreased by 50.0%. In 2010, approximately 1 in every 126,952 girls born was named Kerstyn. FALLING Recent data shows the name is currently falling.