Cortnie is a distinctive girls' name in United States, ranking #15938 in 2007 with 6 recorded births. The name reached its all-time peak in 1996 with 29 births ranking #3742. Since 1996, the popularity has decreased by 79.3%. In 2007, approximately 1 in every 320,408 girls born was named Cortnie. FALLING Recent data shows the name is currently falling.