John Boulger (born 18 June 1945 in Adelaide, South Australia) is a former international motorcycle speedway rider.
After he retired from riding Solos in the early 1980s, Boulger raced somewhat successfully in Speedcars (Midgets) from the mid-1980s until the mid-1990s.
Boulger won a record nine South Australian Championships (a record jointly held with 1951 and 1952 World Champion Jack Young) as well as two Australian Solo Championships during his career.
As part of the Australian team, John Boulger won one World Championship during his career, this being the 1976 World Team Cup held at the White City Stadium in London, England.
Boulger had the honour of captaining the team to Australia's first Speedway World Team Cup victory.
It was Australia's first World title in any speedway competition since Young's World Championship win in 1952.