The Man in the High Castle is an alternate history novel by American writer Philip K. Dick. Published and set in 1962, the novel takes place fifteen years after an alternative ending to World War II, and concerns intrigues between the victorious Axis Powers—primarily, Imperial Japan and Nazi Germany—as they rule over the former United States, as well as daily life under the resulting totalitarian rule.

The novel features a "novel within the novel" comprising an alternate history within this alternate history wherein the Allies defeat the Axis (though in a manner distinct from the actual historical outcome).