Addilyn is a distinctive girls' name in United States, ranking #695 in 2012 with 404 recorded births. This places Addilyn in the top 4% of ranked US girls' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 2016 with 1,040 births ranking #312. In 2012, approximately 1 in every 4,358 girls born was named Addilyn. FALLING Recent data shows the name is currently falling.