Maddelyn is a distinctive girls' name in United States, ranking #6017 in 2007 with 23 recorded births. The name reached its all-time peak in 2017 with 43 births ranking #3598. Since 1996, the popularity has increased by 155.6%. In 2007, approximately 1 in every 83,585 girls born was named Maddelyn. STABLE Recent data shows the name is currently stable.