Port Broughton railway line was an isolated 3 ft 6 in (1,067 mm) narrow gauge railway line serving Port Broughton on Spencer Gulf in South Australia.

Horses were used to tow the empty wagons uphill, but they were sent downhill powered by gravity, with a driver to operate the brakes.

In 1906, Clarence Goode, a member for Stanley in the House of Assembly, proposed the use of steam or petrol-powered locomotives on the line.

[1] During January 1926, a Fordson rail tractor displaced the animal power.

[citation needed] The railway ceased to be used on 3 August 1942, but the tractor continued to shunt wheat wagons between the station yard and the jetty at Port Broughton until 1949.