Víðarr (Old Norse: Víðarr) is the son of Odin and the giantess Gríðr, described in Gylfaginning as the strongest of the Æsir after Thor and as the god of silence. He is one of the deities prophesied to survive Ragnarök and inherit the renewed world, as attested in both Völuspá and Gylfaginning.

Víðarr’s principal mythological function is to avenge Odin’s death at Ragnarök. When the wolf Fenrir kills Odin, Víðarr kills Fenrir in return — either by treading on the wolf’s lower jaw and tearing the upper jaw apart with his hands, or by stabbing the wolf with his sword. Gylfaginning describes the first method; Völuspá (st. 55) supports a sword-thrust.

A thick shoe is associated with Víðarr: Gylfaginning states that this shoe is being assembled from the leather scraps trimmed from the toes and heels of all shoes ever made, and that people should donate these trimmings to Víðarr’s cause — one of the very few cult-adjacent references in the Eddic sources implying a practical folk behavior.