Kirston is a distinctive girls' name in United States, ranking #12457 in 2005 with 8 recorded births. The name reached its all-time peak in 1996 with 14 births ranking #6564. Since 1996, the popularity has decreased by 42.9%. In 2005, approximately 1 in every 230,962 girls born was named Kirston. FALLING Recent data shows the name is currently falling.