Keirstin is a distinctive girls' name in United States, ranking #15932 in 2012 with 6 recorded births. The name reached its all-time peak in 1998 with 31 births ranking #3778. Since 1996, the popularity has decreased by 68.4%. In 2012, approximately 1 in every 293,457 girls born was named Keirstin. STABLE Recent data shows the name is currently stable.