Elwine is a ♀ female name.
Elwine is a variant of Alwine, which is a short feminine form of the Old High German name Adalwin and of the Germanic name Alboin.
Elwine means “noble friend” (from Old High German “adal” = noble + “wini” = friend) and “friend of the elves” (from Germanic “albi” = elf + “wini” = friend).