Madilynn is a moderately popular girls' name in United States, ranking #499 in 2015 with 639 recorded births. The name reached its all-time peak in 2014 with 656 births ranking #479. Since 1996, the popularity has increased by 1,836.4%. In 2015, approximately 1 in every 2,793 girls born was named Madilynn. FALLING Recent data shows the name is currently falling.