Cortni is a distinctive girls' name in United States, ranking #14900 in 2005 with 6 recorded births. The name reached its all-time peak in 1997 with 33 births ranking #3462. Since 1996, the popularity has decreased by 71.4%. In 2005, approximately 1 in every 307,950 girls born was named Cortni. FALLING Recent data shows the name is currently falling.