Marly is a distinctive girls' name in United States, ranking #3621 in 2012 with 44 recorded births. The name reached its all-time peak in 2008 with 89 births ranking #2226. Since 1996, the popularity has increased by 69.2%. In 2012, approximately 1 in every 40,017 girls born was named Marly. STABLE Recent data shows the name is currently stable.