Marly is a distinctive girls' name in United States, ranking #4322 in 2011 with 34 recorded births. The name reached its all-time peak in 2008 with 89 births ranking #2226. Since 1996, the popularity has increased by 30.8%. In 2011, approximately 1 in every 51,730 girls born was named Marly. STABLE Recent data shows the name is currently stable.