Addalyn is a distinctive girls' name in United States, ranking #1751 in 2010 with 118 recorded births. This places Addalyn in the top 9% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2015 with 259 births ranking #1030. In 2010, approximately 1 in every 15,062 girls born was named Addalyn. FALLING Recent data shows the name is currently falling.