Þjóðólfr ór Hvini (Old Norse pronunciation: [ˈθjoːðˌoːlvz̠ oːz̠ ˈxwine]; anglicized as Thjódólf of Hvinir or Thiodolf; fl. late 9th–early 10th c. AD),^[1] was a Norwegian skald, said to have been one of the court-poets of the Norwegian king Harald Fairhair.^[2][3] His name suggests that he was from the region of Hvinir (Kvinesdal).^[1] Two skaldic poems, Haustlǫng (Autumn-long) and Ynglingatal (Enumeration of the Ynglingar), are generally attributed to him.^[2][3]

According to Heimskringla, he was he fostered Harald's sons Sigurd Hrisi, Halfdan Long-Leg, Gudröd the Radiant, Ragnvald Rettilbein.

Both Haustlǫng and Ynglingatal are ascribed to Þjóðólfr of Hvinir from a relatively early period. They were preserved, along with some other of his verses, by the 13th-century Icelandic writer Snorri Sturluson in the Prose Edda.^[2] A third poem, Hrafnsmál, is also attributed to him by Snorri, although scholars rather think that it was composed by another of Harald Fairhair's court-poets named Þórbjǫrn Hornklofi.^[2]

Þjóðólfr composed Ynglingatal for Ragnvald Heidumhære, a chieftain from Vestfold (Oslofjord). The poem tells about the lives of the Ynglingar, a dynasty of kings from Uppsala,^[3] and forms the basis for Snorri's Ynglinga saga.^[4]

What we have preserved of Haustlǫng is centred on two mythological scenes: Loki's betraying of Iðunn, the Æsir's "old-age cure", who was snatched from them by the jǫtunn Þjazi in eagle form; and Thor's victorious combat against the strongest of the jǫtnar, Hrungnir.^[3] If as seems likely it was composed in emulation of Bragi inn gamli's Ragnarsdrápa, it will have had two further episodes.^[5]