The Project for the Royal Palace in Campo de Ourique was an ambitious 18th century proposal for a monumental royal palace to be built in the Campo de Ourique neighborhood of Lisbon. Portuguese architect Dionizio de S. Dionizio planned the palace for King Joseph I of Portugal as part of the reconstruction efforts following the destruction of the 1755 Lisbon Earthquake.

Dom Joseph I, known as the Reformer, was King of Portugal from 31 July 1750 until his death in 1777. Among other activities, Joseph was devoted to hunting and the opera. His government was controlled by Sebastião José de Carvalho e Melo, 1st Marquis of Pombal.