Addilyn is a beautiful feminine name that has been gaining popularity over the years. The name is pronounced as uh-DIL-in in English. A variation of this name includes Adalyn, which carries the same charm and elegance. In the United States, Addilyn saw a significant increase in use from 2000 to 2016, with its peak popularity in 2016 when it was ranked as the 312th most popular baby girl's name. The name then experienced a slight decline but remains well-loved and frequently chosen by new parents. This charming name adds a unique twist to traditional names while retaining an air of classic sophistication.