Kirsty is a moderately popular girls' name in England & Wales, ranking #112 in 2001 with 428 recorded births. The name reached its all-time peak in 1996 with 1,202 births ranking #53. Since 1996, the popularity has decreased by 64.4%. In 2001, approximately 1 in every 626 girls born was named Kirsty. FALLING Recent data shows the name is currently falling.