Þjóðólfr of Hvinir [Thjodolf] (c.855–930) was a Norwegian skald. He is considered to have been the original author of Ynglingatal, a poem glorifying the Norwegian petty king Ragnvald the Mountain-High, by describing how he was descended from the Swedish kings and the Norse gods.
He is also credited with another skaldic poem, Haustlöng.