The Great Sandhills Railway (reporting mark GSR) is a Canadian short line railway company operating on trackage in west of Swift Current, Saskatchewan, established in 2009. Great Sandhills Railway operates a short-line railways in Saskatchewan on a former Canadian Pacific Railway subdivision. The railway serves freight stations in Sandhills, Burstall, Mendham, Leader, Prelate, Sceptre, Porteeve, Lancer, Abbey, Cabri, Battrum, Pennant, Success, Cantuar, and Swift Current. It interlines with both the Canadian Pacific Railway and the Great Western Railway in Swift Current.
The GSR network consists of 198 km of its own trackage.