Merlyn is a distinctive girls' name in United States, ranking #7284 in 2004 with 16 recorded births. The name reached its all-time peak in 2008 with 23 births ranking #6073. Since 1996, the popularity has increased by 166.7%. In 2004, approximately 1 in every 114,758 girls born was named Merlyn. FALLING Recent data shows the name is currently falling.