South Coast railway line, New South Wales

The South Coast Railway (also known as the Illawarra railway or the South Coast line) is a passenger and freight railway line from Sydney to Wollongong and Bomaderry in New South Wales, Australia. Beginning at the Illawarra Junction, the line services the Illawarra and South Coast regions of New South Wales.

Opening in segments between 1884 and 1893, the South Coast railway line was built primarily to service the Coal Cliff Colliery, in which colonial government ministers and legislators were shareholders and as an economic link between the Illawarra and Sydney. It later connected the later industrial works at Port Kembla to the greater metropolitan freight railway network in Sydney. The line also serves as a public transport link for residents in St George, Sutherland and the Illawarra. The 56-station, 153-kilometre (95 mi) line is owned by the NSW government's Transport Asset Holding Entity, with passenger services on the line provided by Sydney Trains' Eastern Suburbs & Illawarra Line service in suburban Sydney and by NSW TrainLink's South Coast Line service in the Illawarra.