Cerro El Roble Station (, also known as Cerro El Roble Observatory; obs. code: 805), is a site of Chile's National Astronomical Observatory located on Cerro El Roble, a mountain on the border between Santiago Metropolitan Region and Valparaíso Region. The observatory building sits at an elevation of and is approximately northwest of Santiago. It was built by UCh in 1967 to house a Maksutov telescope provided by the Soviet Union, which began operating in 1968.