Over the past 110 years, 9 boys and 90 118 girls have been named Madelyn. The name Madelyn ranks 11002th in the United States among the most common names for boys. For the first time more than ten times newborns were named Madelyn in 2004. The peak of popularity of the name Madelyn came in the 2000s. You can see absolute numbers and relative numbers on the chart. Indicators per 100K more accurately assess the popularity of the name.