Cortana is a distinctive girls' name in United States, ranking #7392 in 2014 with 16 recorded births. This places Cortana in the top 38% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2015 with 30 births ranking #4621. In 2014, approximately 1 in every 111,621 girls born was named Cortana. FALLING Recent data shows the name is currently falling.