The 1956 Grand Prix motorcycle racing season was the eighth Road Racing World Championship Grand Prix season. The season consisted of six Grand Prix races in five classes: 500cc, 350cc, 250cc, 125cc and Sidecars 500cc. It began on 8 June, with Isle of Man TT and ended with Nations Grand Prix in Italy on 9 September.
Points were awarded to the top six finishers in each race. Only the four best races were counted in all five classes: the Sidecars, 125cc, 250cc, 350cc and 500cc championships.
Bold – Pole
Italics – Fastest Lap