Gullfaxi (Old Norse: [ˈɡulːˌfɑkse]) is a horse in Norse mythology.
Its name means "Golden mane".
It was originally owned by Hrungnir, and was later given to Magni by Thor as a reward for lifting off the leg of Hrungnir, which lay over the unconscious Thor and strangled him: Gullfaxi is equally fast on land, in the air and on the water, but not quite as fast as Sleipnir, Odin's horse.
Gullfaxi is also the name of a horse in the modern Icelandic folk-tale The Horse Gullfaxi and the Sword Gunnfoder collected by Jón Árnason, translated into German by Josef Poestion [de], then rendered into English and included in the Crimson Fairy Book (1903) compiled by Andrew Lang.
This article relating to a Norse myth or legend is a stub.