Kirsti is a distinctive girls' name in United States, ranking #4723 in 1998 with 23 recorded births. The name reached its all-time peak in 1996 with 26 births ranking #4123. Since 1996, the popularity has decreased by 11.5%. In 1998, approximately 1 in every 76,821 girls born was named Kirsti. RISING Recent data shows the name is currently rising.