Gravisi–Buttorai Mansion (Slovene: palača Gravisi-Buttorai; Italian: palazzo Gravisi-Buttorai) is a mansion in Koper, a port town in southwestern Slovenia. It is a protected monument of local significance. The mansion is situated at Shoemaker's Street (Slovene: Čevljarska ulica, Italian: Calegaria) in the old town center. It was the seat of a branch of the family, whose senior line had the title of Marquis of Pietrapelosa, first granted to Nicolò Gravisi in 1440.