Cortni is a distinctive girls' name in United States, ranking #3462 in 1997 with 33 recorded births. The name reached its all-time peak in 1997 with 33 births ranking #3462. Since 1996, the popularity has increased by 57.1%. In 1997, approximately 1 in every 52,747 girls born was named Cortni. FALLING Recent data shows the name is currently falling.