In Norse mythology, Gungnir (Old Norse “swaying one”) is the spear of the god Odin.
According to the Poetic Edda, the spear was fashioned by the Dwarves; Loki discovers the Spear whilst visiting the Dwarves (on an errand to commission golden hair for Sif). Loki flatters the Dwarves and asks the Spear of them, which they give him. In the Poetic Edda poem Völuspá, the Æsir-Vanir War is described as officially starting when Odin throws a spear over the heads of an assembly of Vanir gods. Whether or not this was specifically Gungnir is, however, unstated. In Sigrdrífumál, the valkyrie Sigrdrífa advises Sigurd on the magical application of runes. She gives Sigurd advice and shares with him lore, including that runes were carved on the tip of Gungnir.