Marily is a distinctive girls' name in United States, ranking #8953 in 2012 with 13 recorded births. The name reached its all-time peak in 2005 with 34 births ranking #4170. Since 1996, the popularity has decreased by 35.0%. In 2012, approximately 1 in every 135,442 girls born was named Marily. STABLE Recent data shows the name is currently stable.