Merlyn is a distinctive girls' name in United States, ranking #10239 in 2019 with 10 recorded births. The name reached its all-time peak in 2008 with 23 births ranking #6073. Since 1996, the popularity has increased by 66.7%. In 2019, approximately 1 in every 167,757 girls born was named Merlyn. FALLING Recent data shows the name is currently falling.