In Norse cosmology, Muspelheim, also called Muspell, is a realm of fire.
The etymology of "Muspelheim" is uncertain, but may come from Mund-spilli, "world-destroyers", "wreck of the world".


Muspelheim is described as a hot and glowing land of fire, home to the fire giants, and guarded by Surtr, with his flaming sword. It is featured in both the creation and destruction stories of Norse myth. According to the Prose Edda, A great time before the earth was made, Niflheim existed. Inside Niflheim was a well called Hvergelmer, from this well flowed numerous streams known as the Elivog. Their names were Svol, Gunnthro, Form, Finbul, Thul, Slid and Hrid, Sylg and Ylg, Vid, Leipt and Gjoll. After a time these streams had traveled far from their source at Niflheim. So far that the venom that flowed within them hardened and turned to ice. When this ice eventually settled, rain rose up from it, and froze into rime. This ice then began to layer itself over the primordial void, Ginnungagap. This made the northern portion of Ginungagap thick with ice, and storms begin to form within. However, in the southern region of Ginungagap glowing sparks were flying out of Muspelheim. When the heat and sparks from Muspelheim met the ice, it began to melt. These sparks would go on to create the Sun, Moon, and stars, and the drops would form the primeval being Ymir. "by the might of him who sent the heat, the drops quickened into life and took the likeness of a man, who got the name Ymer. But the Frost giants call him Aurgelmer"
The Prose Edda section Gylfaginning foretells that the sons of Muspell will break the Bifröst bridge as part of the events of Ragnarök:

Depictions in Popular Culture

Muspelheim appears in different kinds of Marvel Entertainment media.
The game Puzzle & Dragons features a monster entitled Flamedragon Muspelheim and Infernodragon Muspelheim.
In the game God of War, you can travel to Muspelheim where you can complete the six Trials of Muspelheim. When completing each trial, the player will receive rewards and will advance Kratos and Atreus closer to the top of a large volcano.