Cortnie is a distinctive girls' name in United States, ranking #10631 in 2003 with 9 recorded births. The name reached its all-time peak in 1996 with 29 births ranking #3742. Since 1996, the popularity has decreased by 69.0%. In 2003, approximately 1 in every 203,006 girls born was named Cortnie. FALLING Recent data shows the name is currently falling.