Kerstyn is a distinctive girls' name in United States, ranking #7006 in 2006 with 18 recorded births. The name reached its all-time peak in 2000 with 35 births ranking #3700. Since 1996, the popularity has decreased by 35.7%. In 2006, approximately 1 in every 105,615 girls born was named Kerstyn. FALLING Recent data shows the name is currently falling.