Nazi architecture was an architectural plan which played a role in the Nazi party's plans to create a cultural and spiritual rebirth in Germany as part of the Third Reich.

Adolf Hitler was an admirer of imperial Rome and believed that some ancient Germans had, over time, become part of its social fabric and exerted influence on it. He considered the Romans an early Aryan empire, and emulated their architecture in an original style inspired by both neoclassicism and art deco, sometimes known as "severe" deco, erecting edifices as cult sites for the Nazi Party. He also ordered construction of a type of Altar of Victory, borrowed from the Greeks, who were, according to Nazi ideology, inseminated with the seed of the Aryan peoples. At the same time, because of his admiration for the Classical cultures of the ancient Mediterranean, he could not isolate and politicize German antiquity, as Benito Mussolini had done with respect to Roman antiquity. Therefore he had to import political symbols into Germany and justify their presence on the grounds of a spurious racial ancestry, the myth that ancient Greeks were among the ancestors of the Germans - linked to the same Aryan peoples.