Kierstan is a distinctive girls' name in United States, ranking #12352 in 2016 with 8 recorded births. The name reached its all-time peak in 1998 with 31 births ranking #3782. Since 1996, the popularity has decreased by 70.4%. In 2016, approximately 1 in every 221,436 girls born was named Kierstan. FALLING Recent data shows the name is currently falling.