Kierstan is a distinctive girls' name in United States, ranking #5360 in 2005 with 24 recorded births. The name reached its all-time peak in 1998 with 31 births ranking #3782. Since 1996, the popularity has decreased by 11.1%. In 2005, approximately 1 in every 76,987 girls born was named Kierstan. FALLING Recent data shows the name is currently falling.