The Man in the High Castle is an American dystopian alternate history television series created for streaming service Amazon Prime Video, depicting a parallel universe where the Axis powers of Nazi Germany and the Empire of Japan rule the world after their victory in World War II. It was created by Frank Spotnitz and produced by Amazon Studios, Ridley Scott's Scott Free Productions (with Scott serving as executive producer), Headline Pictures, Electric Shepherd Productions, and Big Light Productions. The series is based on Philip K. Dick's 1962 novel of the same name.

The pilot premiered in January 2015, and Amazon ordered a ten-episode season the following month which was released in November. A second season of ten episodes premiered in December 2016, and a third season was released on October 5, 2018. The fourth and final season premiered on November 15, 2019.