1964 Grand Prix motorcycle racing season

Road Racing World Championship Grand Prix season.

The season consisted of twelve Grand Prix races in six classes: 500cc, 350cc, 250cc, 125cc, 50cc and Sidecars 500cc.

Honda's Jim Redman won all eight 350 class races against only token factory opposition.

The 250 class proved to be more difficult as Yamaha's Phil Read battled Redman all season long, with Read finally coming out on top, winning five races to Redman's three.

Bold – Pole Italics – Fastest Lap Each constructor is awarded the same number of points as their best placed rider in each race.