Marily is a distinctive girls' name in United States, ranking #8883 in 2013 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 2013, approximately 1 in every 134,955 girls born was named Marily. STABLE Recent data shows the name is currently stable.