Kourtney is a distinctive boys' name in United States, ranking #13201 in 2020 with 5 recorded births. The name reached its all-time peak in 2011 with 21 births ranking #4591. Since 1996, the popularity has decreased by 66.7%. In 2020, approximately 1 in every 345,013 boys born was named Kourtney. STABLE Recent data shows the name is currently stable.