Minni is a ♀ female name.
Minni is a variant of Minnie, which is a diminutive of several names, especially of the Germanic name Wilhelmina. Besides, Minni is a form of the name Minna, which as well derived from Wilhelmina. The name Minni also occurs in the Bible. There it is the name of a kingdom in Aram.
Minni means “will helmet” and “resolute protector” (from Old High German “willio” = will/desire + “helm” = helmet/protection).