Maddelyn is a distinctive girls' name in United States, ranking #8530 in 2001 with 12 recorded births. The name reached its all-time peak in 2017 with 43 births ranking #3598. Since 1996, the popularity has increased by 33.3%. In 2001, approximately 1 in every 150,047 girls born was named Maddelyn. STABLE Recent data shows the name is currently stable.