Maddelyn is a distinctive girls' name in United States, ranking #5527 in 2003 with 22 recorded births. The name reached its all-time peak in 2017 with 43 births ranking #3598. Since 1996, the popularity has increased by 144.4%. In 2003, approximately 1 in every 83,048 girls born was named Maddelyn. STABLE Recent data shows the name is currently stable.