Marly is a distinctive girls' name in United States, ranking #2864 in 2001 with 51 recorded births. The name reached its all-time peak in 2008 with 89 births ranking #2226. Since 1996, the popularity has increased by 96.2%. In 2001, approximately 1 in every 35,305 girls born was named Marly. STABLE Recent data shows the name is currently stable.