Kerstyn is a distinctive girls' name in United States, ranking #5318 in 1997 with 19 recorded births. The name reached its all-time peak in 2000 with 35 births ranking #3700. Since 1996, the popularity has decreased by 32.1%. In 1997, approximately 1 in every 91,614 girls born was named Kerstyn. FALLING Recent data shows the name is currently falling.