Derived from Adelaide and Madalyn (with the M dropped), this name means “noble,” which is fitting for a little girl clad in a tiara while bossing her brothers around.
Addy, Addie, Lynn.
Famous people named Adalyn:
1930s actress Adalyn Doyle; daughter of professional baseball player Trevor Rosenthal.
Adalyn is the title (and main character) of a short film made in 2010 about a young girl with a boundless imagination who navigates through adventures by solving conflicts in non-violent ways.