Madlyn is a distinctive girls' name in United States, ranking #4159 in 2001 with 30 recorded births. The name reached its all-time peak in 2005 with 32 births ranking #4326. Since 1996, the popularity has increased by 100.0%. In 2001, approximately 1 in every 60,019 girls born was named Madlyn. FALLING Recent data shows the name is currently falling.