The Bombala railway line is a branch railway line in the south of New South Wales, Australia. The northern part of it forms part of the main line from Sydney to Canberra, but the southern part is closed. It branches off the Main South line at Joppa Junction, south of Goulburn. The line is used by NSW TrainLink Xplorer services running between Sydney Central and Canberra station.

The Main Southern Railway is a major railway in New South Wales, Australia. It runs from Sydney to Albury, near the Victorian border. The line passes through the Southern Highlands, Southern Tablelands, South West Slopes and Riverina regions.