Madlyn is a distinctive girls' name in United States, ranking #11092 in 2018 with 9 recorded births. The name reached its all-time peak in 2005 with 32 births ranking #4326. Since 1996, the popularity has decreased by 40.0%. In 2018, approximately 1 in every 188,936 girls born was named Madlyn. FALLING Recent data shows the name is currently falling.