Adalyne is one of the many American spellings of Adalyn and Adeline, names built on the Germanic element adal, "noble", so the name is read as "noble" or "of noble kind". The -lyne ending gives it the look of Evelyn and Madelyn, with which it is often paired. Adalyne peaked at number 2068 in 2016, while its sisters Adalyn and Adalynn sat in the top 200; in 2025 it ranks number 2486 among girls' names.