Kourtney is a distinctive boys' name in United States, ranking #10169 in 2015 with 7 recorded births. The name reached its all-time peak in 2011 with 21 births ranking #4591. Since 1996, the popularity has decreased by 53.3%. In 2015, approximately 1 in every 273,751 boys born was named Kourtney. STABLE Recent data shows the name is currently stable.