Maddelyn is a distinctive girls' name in United States, ranking #3686 in 2016 with 42 recorded births. The name reached its all-time peak in 2017 with 43 births ranking #3598. Since 1996, the popularity has increased by 366.7%. In 2016, approximately 1 in every 42,178 girls born was named Maddelyn. STABLE Recent data shows the name is currently stable.