Adalynn is a modern American spelling of Adeline, which comes from the Germanic word adal and means "noble" or "of noble kind". The -lynn ending ties it to the popular Brooklynn and Evelynn family, so it reads as both vintage and current. Adalynn entered the US top 1000 in 2008, climbed to a peak of number 108 in 2018 and still ranks number 184 in 2025, with the spellings Adalyn and Adelynn charting separately.