Kearstyn is a distinctive girls' name in United States, ranking #6448 in 2003 with 18 recorded births. The name reached its all-time peak in 2006 with 19 births ranking #6718. Since 1996, the popularity has increased by 260.0%. In 2003, approximately 1 in every 101,503 girls born was named Kearstyn. FALLING Recent data shows the name is currently falling.