Addalyn is a distinctive girls' name in United States, ranking #1030 in 2015 with 259 recorded births. This places Addalyn in the top 5% 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 2015, approximately 1 in every 6,891 girls born was named Addalyn. FALLING Recent data shows the name is currently falling.