Dom Duarte Pio, Duke of Braganza (Duarte Pio João Miguel Gabriel Rafael; born 15 May 1945) is a claimant to the defunct Portuguese throne, as the head of the House of Braganza.
The Miguelist Braganzas, to whom Duarte Pio belongs as great-grandson of King Miguel I, is a cadet branch of the House of Braganza.
With the extinction of male-line dynasts descended from Queen Maria II in 1932, King Miguel's descendants became the only male-line Braganzas remaining and the closest male-line heirs to the defunct Portuguese throne (the Brazilian branch having gone extinct in 1921).
Duarte Pio is a figure within the European network of royal houses, often being invited to various foreign royal events.