Mattilyn is a distinctive girls' name in United States, ranking #6168 in 2018 with 20 recorded births. This places Mattilyn in the top 34% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2012 with 40 births ranking #3887. In 2018, approximately 1 in every 85,021 girls born was named Mattilyn. STABLE Recent data shows the name is currently stable.