Marilyn is a distinctive girls' name in United States, ranking #581 in 2009 with 524 recorded births. The name reached its all-time peak in 2013 with 837 births ranking #373. Since 1996, the popularity has decreased by 14.2%. In 2009, approximately 1 in every 3,505 girls born was named Marilyn. STABLE Recent data shows the name is currently stable.