Kierstin is a distinctive girls' name in United States, ranking #7818 in 2015 with 15 recorded births. The name reached its all-time peak in 2005 with 174 births ranking #1284. Since 1996, the popularity has decreased by 87.6%. In 2015, approximately 1 in every 118,977 girls born was named Kierstin. FALLING Recent data shows the name is currently falling.