穆斯贝尔海姆（Muspelheim或Muspellheim或Múspellsheimr，也可以称作Muspel或Múspell），在北欧神话中，其义为「火之国」（Flameland），另也有「荒芜的家」（Home of Desolation）之意。

这是在世界诞生之初，位于金伦加鸿沟南边末端的一个地区。相传那边充满了火焰与热，在「火之国」穆斯贝尔海姆的热力和「雾之国」尼福尔海姆的寒冰交替作用之下，最初的生命因此而诞生。主宰这地区的是火巨人史尔特尔，他是阿斯嘉特诸神的敌人，当「诸神的黄昏」发生时，史尔特尔会度过彩虹桥来攻击诸神。

In Norse mythology, Muspelheim (Old Norse:Múspellsheimr), also called Muspell (Old Norse:Múspell), is a realm of fire. This realm is one of the Nine Worlds, ruled by Surt with his consort Sinmara in some accounts. The denizens of Muspelheim were usually referred to as the Eldjötnar (also Eldthursar, "fire giants") in Norse tradition, though they were also identified by other epithets in Eddic poetry, such as the Múspellssynir (or Múspellsmegir — "sons of Muspell") and the Rjúfendr (from rjúfa — "to break, tear asunder", Destroyers of Doomsday). Both of these terms sometimes described an entirely separate mythological species that dwelled alongside or in place of the eldjötnar within this fiery realm. Muspelheim is fire; and the land to the North, Niflheim, is ice. The two mixed and created water from the melting ice in Ginnungagap. The sun and the stars originate from Muspelheim.