"Three Billy Goats Gruff" is a Norwegian fairy tale collected by Peter Christen Asbjørnsen and Jørgen Moe in their Norske Folkeeventyr, first published between 1841 and 1844. It has an Aarne-Thompson type of 122E. The first version of the story in English appeared in George Webbe Dasent's translation of some of the Norske Folkeeventyr, published as Popular Tales from the Norse in 1859. The heroes of the tale are three male goats who need to outsmart a ravenous troll to cross the bridge to their feeding ground.

Nordic folklore is the folklore of Denmark, Norway, Sweden, Iceland and the Faroe Islands. It has common roots with, and has been under mutual influence with, folklore in England, Germany, the Low Countries, the Baltic countries, Finland and Sápmi. Folklore is a concept encompassing expressive traditions of a particular culture or group. The peoples of Scandinavia are heterogenous, as are the oral genres and material culture that has been common in their lands. However, there are some commonalities across Scandinavian folkloric traditions, among them a common ground in elements from Norse mythology as well as Christian conceptions of the world.