Merilyn is a distinctive girls' name in United States, ranking #14727 in 2022 with 6 recorded births. The name reached its all-time peak in 2005 with 19 births ranking #6453. Since 1996, the popularity has increased by 20.0%. In 2022, approximately 1 in every 273,127 girls born was named Merilyn. FALLING Recent data shows the name is currently falling.