Kierstan is a distinctive girls' name in United States, ranking #7253 in 2004 with 16 recorded births. The name reached its all-time peak in 1998 with 31 births ranking #3782. Since 1996, the popularity has decreased by 40.7%. In 2004, approximately 1 in every 114,758 girls born was named Kierstan. FALLING Recent data shows the name is currently falling.