Kourtney is a distinctive girls' name in United States, ranking #3202 in 2023 with 51 recorded births. The name reached its all-time peak in 1996 with 594 births ranking #429. Since 1996, the popularity has decreased by 91.4%. In 2023, approximately 1 in every 31,424 girls born was named Kourtney. FALLING Recent data shows the name is currently falling.