Addilyn is a distinctive girls' name in United States, ranking #967 in 2010 with 264 recorded births. This places Addilyn in the top 5% 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 2010, approximately 1 in every 6,732 girls born was named Addilyn. FALLING Recent data shows the name is currently falling.