Keirstin is a distinctive girls' name in United States, ranking #6206 in 2009 with 22 recorded births. The name reached its all-time peak in 1998 with 31 births ranking #3778. Since 1996, the popularity has increased by 15.8%. In 2009, approximately 1 in every 83,494 girls born was named Keirstin. STABLE Recent data shows the name is currently stable.