Proietti is an Italian surname. Notable people with the surname include: Biagio Proietti (1940–2022), Italian screenwriter, director and writer Cristiana Proietti, American fashion designer Gigi Proietti (1940–2020), Italian actor Francesco Cosimi Proietti (1951–2021), Italian politician Giovanni Proietti (born 1977), Italian footballer Jonathan Proietti (born 1982), Luxembourgian footballer Monica Proietti (1940–1967), Canadian bank robber