In Norse mythology, Hlaðguðr svanhvít (Old Norse Hlaðguðr " swan-white" [1]) is a valkyrie. Hlaðguðr svanhvít is attested in the Poetic Edda poem Völundarkviða as the sister of the valkyrie Hervör alvitr (both daughters of King Hlödvér), and as the seven-year wife of Slagfiðr.