Maddelyn is a distinctive girls' name in United States, ranking #4460 in 2010 with 33 recorded births. The name reached its all-time peak in 2017 with 43 births ranking #3598. Since 1996, the popularity has increased by 266.7%. In 2010, approximately 1 in every 53,858 girls born was named Maddelyn. STABLE Recent data shows the name is currently stable.