1956 Grand Prix motorcycle racing season

The 1956 Grand Prix motorcycle racing season was the eighth F.I.M. 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.

Reigning 500cc champion Geoff Duke had to serve a six months ban at the start of the season for supporting a strike by privateer riders over starting money at the 1955 Dutch TT.

Scoring system
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.