Cortlyn is a distinctive girls' name in United States, ranking #6709 in 2010 with 19 recorded births. The name reached its all-time peak in 2006 with 21 births ranking #6184. Since 1996, the popularity has increased by 35.7%. In 2010, approximately 1 in every 93,544 girls born was named Cortlyn. FALLING Recent data shows the name is currently falling.