Kirsty is a distinctive girls' name in England & Wales, ranking #549 in 2010 with 73 recorded births. The name reached its all-time peak in 1996 with 1,202 births ranking #53. Since 1996, the popularity has decreased by 93.9%. In 2010, approximately 1 in every 4,398 girls born was named Kirsty. FALLING Recent data shows the name is currently falling.