Marilyn is a distinctive girls' name in United States, ranking #607 in 2018 with 498 recorded births. The name reached its all-time peak in 2013 with 837 births ranking #373. Since 1996, the popularity has decreased by 18.5%. In 2018, approximately 1 in every 3,415 girls born was named Marilyn. STABLE Recent data shows the name is currently stable.