Maddelyn is a distinctive girls' name in United States, ranking #6738 in 2006 with 19 recorded births. The name reached its all-time peak in 2017 with 43 births ranking #3598. Since 1996, the popularity has increased by 111.1%. In 2006, approximately 1 in every 100,056 girls born was named Maddelyn. STABLE Recent data shows the name is currently stable.