Hjaðningavíg

right|thumb|340px|A detail from the Stora Hammars stones|Stora Hammars I stone, an [[image stone on Gotland]] right|thumb|340px|A detail from the Smiss (I) stone, an image stone on Gotland Hjaðningavíg (the 'battle of the Heodenings'), the legend of Heðinn and Hǫgni or the Saga of Hild is a Germanic heroic legend about a never-ending battle which is documented in Sörla þáttr, Ragnarsdrápa, Gesta Danorum, Skíðaríma and in Skáldskaparmál. It is also held to appear on the image stone at Stora Hammar on Gotland (see illustration). Moreover, it is alluded to in the Old English poems Deor and Widsið, and in the Old Norse Háttalykill inn forni, and a version of it survived down to the 18th century in the traditional Norn language ballad "Hildina". An altered version of the saga is found in the Middle High German poem Kudrun, as a prologue to the story of Kudrun herself. Yet another version is found in the Old Yiddish Dukus Horant.

Like the names Heðinn (O.E. Heoden) and Hǫgni (O.E. Hagena), the legend is believed to have continental Germanic origins.