Merlyn is a distinctive girls' name in United States, ranking #13045 in 2012 with 8 recorded births. The name reached its all-time peak in 2008 with 23 births ranking #6073. Since 1996, the popularity has increased by 33.3%. In 2012, approximately 1 in every 220,093 girls born was named Merlyn. FALLING Recent data shows the name is currently falling.