Marly is a distinctive girls' name in United States, ranking #4244 in 2002 with 30 recorded births. The name reached its all-time peak in 2008 with 89 births ranking #2226. Since 1996, the popularity has increased by 15.4%. In 2002, approximately 1 in every 59,894 girls born was named Marly. STABLE Recent data shows the name is currently stable.