Merlyn is a distinctive boys' name in United States, ranking #11534 in 2025 with 6 recorded births. This places Merlyn in the bottom 17% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2000 with 10 births ranking #6671. In 2025, approximately 1 in every 284,679 boys born was named Merlyn. STABLE Recent data shows the name is currently stable.