Torunn is a distinctive girls' name in United States, ranking #10337 in 2011 with 11 recorded births. This places Torunn in the bottom 47% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2011 with 11 births ranking #10337. In 2011, approximately 1 in every 159,891 girls born was named Torunn. FALLING Recent data shows the name is currently falling.