Addilyn is a distinctive girls' name in England & Wales, ranking #1866 in 2021 with 15 recorded births. This places Addilyn in the top 25% of ranked UK girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2018 with 15 births ranking #1887. In 2021, approximately 1 in every 18,269 girls born was named Addilyn. FALLING Recent data shows the name is currently falling.