Hræsvelgr (Old Norse) is a jötunn in Norse mythology. He is portrayed as the eagle-shaped originator of the wind.
The Old Norse name Hræsvelgr has been translated as 'corpse-swallower', or as 'shipwreck-current'.
Hræsvelgr's name is sometimes anglicised as Hraesvelgr, Hresvelgr, Hraesveglur, or Hraesvelg. The common Danish form is Hræsvælg and the common Swedish form is Räsvelg.
In Vafþrúðnismál (The Lay of Vafþrúðnir), Odin questions the wise jötunn Vafþrúðnir about the origin of the wind, and the jötunn answers:
This stanza is paraphrased by Snorri Sturluson in Gylfaginning (The Beguiling of Gylfi), when Hárr answers the same question, that time asked by Gangleri (Gylfi in disguise). Snorri adds that Hræsvelgr sits at the north end of heaven, and that winds originate from under his gigantic eagle’s wings when he spreads them for flight.