Marilyn is a distinctive girls' name in United States, ranking #761 in 2025 with 356 recorded births. This places Marilyn in the top 4% of ranked US girls' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 2013 with 837 births ranking #373. Since 1996, the popularity has decreased by 41.7%. In 2025, approximately 1 in every 4,515 girls born was named Marilyn. STABLE Recent data shows the name is currently stable.