Kortnie is a distinctive girls' name in United States, ranking #4805 in 1999 with 23 recorded births. The name reached its all-time peak in 1996 with 30 births ranking #3682. Since 1996, the popularity has decreased by 23.3%. In 1999, approximately 1 in every 77,121 girls born was named Kortnie. RISING Recent data shows the name is currently rising.