Kourtney is a distinctive girls' name in United States, ranking #3099 in 2022 with 53 recorded births. The name reached its all-time peak in 1996 with 594 births ranking #429. Since 1996, the popularity has decreased by 91.1%. In 2022, approximately 1 in every 30,920 girls born was named Kourtney. FALLING Recent data shows the name is currently falling.