Merlyn is a distinctive girls' name in United States, ranking #6708 in 1997 with 14 recorded births. The name reached its all-time peak in 2008 with 23 births ranking #6073. Since 1996, the popularity has increased by 133.3%. In 1997, approximately 1 in every 124,333 girls born was named Merlyn. FALLING Recent data shows the name is currently falling.