Kourtney is a distinctive boys' name in United States, ranking #6858 in 2012 with 12 recorded births. This places Kourtney in the top 48% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2011 with 21 births ranking #4591. Since 1996, the popularity has decreased by 20.0%. In 2012, approximately 1 in every 158,052 boys born was named Kourtney. STABLE Recent data shows the name is currently stable.