The Penrice Stone Train was a limestone train in South Australia that operated from the Penrice Quarry near Angaston on the Barossa Valley line to Penrice Soda Products' soda ash factory in Osborne in Adelaide's north-western suburbs, and the co-located Readymix concrete batching plant.
The train commenced operating in November 1950, initially being operated by the South Australian Railways, and later by Australian National and Genesee & Wyoming Australia. It was notable as the last broad gauge freight service in South Australia. It ceased operating in June 2014 when the Osborne factory closed.
In its final years, it was hauled by 700 and 830 class locomotives. It had previously been hauled by the Rx, 500, 700, 750, 900, 930, GM, CK and BL classes.