Kourtney is a distinctive boys' name in United States, ranking #5383 in 2014 with 17 recorded births. The name reached its all-time peak in 2011 with 21 births ranking #4591. Since 1996, the popularity has increased by 13.3%. In 2014, approximately 1 in every 112,967 boys born was named Kourtney. STABLE Recent data shows the name is currently stable.