Dagny is a distinctive girls' name in United States, ranking #8504 in 1997 with 10 recorded births. This places Dagny 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 2013 with 81 births ranking #2288. In 1997, approximately 1 in every 174,066 girls born was named Dagny. FALLING Recent data shows the name is currently falling.