Kourtney is a distinctive boys' name in United States, ranking #8042 in 2008 with 10 recorded births. The name reached its all-time peak in 2011 with 21 births ranking #4591. Since 1996, the popularity has decreased by 33.3%. In 2008, approximately 1 in every 203,995 boys born was named Kourtney. STABLE Recent data shows the name is currently stable.