Kierstan is a distinctive girls' name in United States, ranking #12617 in 2013 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 2013, approximately 1 in every 219,302 girls born was named Kierstan. FALLING Recent data shows the name is currently falling.