"Hansel and Gretel" is a well-known German fairy tale recorded by the Brothers Grimm and published in 1812. Hansel and Gretel are a young brother and sister kidnapped by a cannibalistic witch living in a forest in a house constructed of cake, confectionery, candy, and many more treats. The two children escape with their lives by outwitting her. The tale has been adapted to various media, most notably the opera Hänsel und Gretel (1893) by Engelbert Humperdinck. "Hansel and Gretel" is classified under Class 327А of the Aarne–Thompson classification system.

Hansel and Gretel's trail of breadcrumbs inspired the name of the navigation element "breadcrumbs" that allows users to keep track of their locations within programs or documents. The opera Hänsel und Gretel by Engelbert Humperdinck is one of the most renowned operas and is considered one of the most important German operas. Elements from the story were used in the 1994 horror film Wes Craven's New Nightmare for its climax.

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