Nazi architecture is the architecture promoted by Adolf Hitler and the Nazi regime from 1933 until its fall in 1945, connected with urban planning in Nazi Germany. It is characterized by three forms: a stripped neoclassicism, typified by the designs of Albert Speer; a vernacular style that drew inspiration from traditional rural architecture, especially alpine; and a utilitarian style followed for major infrastructure projects and industrial or military complexes. Nazi ideology took a pluralist attitude to architecture; however, Hitler himself believed that form follows function and wrote against "stupid imitations of the past".

Urban planning in Nazi Germany, the urban design and planning concepts used and promoted by the Third Reich (1933–1945), was heavily influenced by modernist planning and involved totalitarian methods to enforce Nazi ideology on its native and conquered populations.