Marly is a distinctive girls' name in United States, ranking #3926 in 2003 with 35 recorded births. The name reached its all-time peak in 2008 with 89 births ranking #2226. Since 1996, the popularity has increased by 34.6%. In 2003, approximately 1 in every 52,201 girls born was named Marly. STABLE Recent data shows the name is currently stable.