Robert Ludvigovich Bartini (Russian: Роберт Людвигович Бартини; 14 May 1897 – 6 December 1974) was an Hungarian-born Soviet aircraft designer and scientist, involved in the development of numerous successful and experimental aircraft projects. A pioneer of amphibious aircraft and ground effect vehicles, Bartini was one of the most famous engineers in the Soviet Union, nicknamed Barone Rosso (Red Baron) because of his noble descent.