This is a list of former railway operating companies operating in Australia. For former Government authorities, see List of former government railway authorities of Australia.
National
- Australian Railroad Group
- Freight Australia
- QR National
New South Wales
- CityRail
- State Rail Authority
- CountryLink
- Sydney Railway Company
- Rosehill Railway Company
- Silverton Tramway Company
- South Maitland Railway
- National Rail Corporation
- Brown's Richmond Vale Railway
Queensland
- Aramac Tramway – 1913–1975, run by shire council
South Australia
- South Australian Railways
Tasmania
- Emu Bay Railway
- Launceston and Western Railway
- Mount Lyell Mining and Railway Company
- North Mount Lyell Railway
- Tasmanian Main Line Company
Victoria
- Connex Melbourne (Hillside Trains)
- M>Train (Bayside Trains)
- V/Line Freight
- Freight Victoria
- Geelong and Melbourne Railway Company
- Great Northern Rail Services
- Kerang-Koondrook Tramway
- Melbourne and Hobson's Bay Railway Company
- Melbourne and Suburban Railway Company
- Melbourne, Mount Alexander and Murray River Railway Company
- Powelltown Tramway
- St Kilda and Brighton Railway Company
- West Coast Railway
Western Australia
- Great Southern Railway
- Midland Railway of Western Australia
See also
- History of rail transport in Australia
- Rail transport in Australia