Kierstin is a distinctive girls' name in United States, ranking #1363 in 1998 with 127 recorded births. This places Kierstin in the top 8% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2005 with 174 births ranking #1284. In 1998, approximately 1 in every 13,913 girls born was named Kierstin. FALLING Recent data shows the name is currently falling.