Peter Williams was a British former professional motorcycle racer. He competed in Grand Prix motorcycle road racing from 1966 to 1973. He also competed at many levels on home short-circuit races. He raced many times on the Isle of Man TT course from 1966 to 1973. His father was Jack Williams who ran the Associated Motor Cycles (AMC) race department. Williams trained in mechanical engineering and introduced via racing alloy wheels, an innovation which is commonplace on today's road bikes, and was also an early pioneer of solo-motorcycle disc brakes.

The International North West 200 is a motorcycle road race first held in 1929 on a 8.970 mi (14.436 km) street circuit known as the Triangle between the towns of Portstewart, Coleraine and Portrush in Causeway Coast and Glens, Northern Ireland, United Kingdom. It is the largest annual sporting event in Northern Ireland, with the race weekend attracting over 150,000 visitors from all over the world. The course is one of the fastest in the world, with average speeds of 120 mph (190 km/h) and top speeds in excess of 200 mph (320 km/h).