Kirston is a distinctive girls' name in United States, ranking #9592 in 2004 with 11 recorded births. The name reached its all-time peak in 1996 with 14 births ranking #6564. Since 1996, the popularity has decreased by 21.4%. In 2004, approximately 1 in every 166,920 girls born was named Kirston. FALLING Recent data shows the name is currently falling.