Kerstyn is a distinctive girls' name in United States, ranking #3673 in 1999 with 33 recorded births. The name reached its all-time peak in 2000 with 35 births ranking #3700. Since 1996, the popularity has increased by 17.9%. In 1999, approximately 1 in every 53,751 girls born was named Kerstyn. FALLING Recent data shows the name is currently falling.