Kierstan is a distinctive girls' name in United States, ranking #9261 in 2008 with 13 recorded births. The name reached its all-time peak in 1998 with 31 births ranking #3782. Since 1996, the popularity has decreased by 51.9%. In 2008, approximately 1 in every 145,440 girls born was named Kierstan. FALLING Recent data shows the name is currently falling.