Mily is a distinctive girls' name in United States, ranking #14014 in 2005 with 7 recorded births. This places Mily in the bottom 27% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2008 with 47 births ranking #3516. In 2005, approximately 1 in every 263,957 girls born was named Mily. FALLING Recent data shows the name is currently falling.