Brenda Walsh (born 31 December 1952) is a former Canadian sprinter and middle-distance runner.

At the 1971 Pan American Games she placed fifth in the 400 metres.

At the 1974 British Commonwealth Games she won bronze in the 4 × 400 m relay. In the 400 metres she was eliminated in the heat, and in the 800 metres she was a semi-finalist.

In 1971 she was English vice champion in the 400 metres^[1] and in 1973 US indoor champion in the 440 yards.^[2]