Railway companies of Saskatchewan

List of railway companies in the Canadian province of Saskatchewan.

Companies based in Canada

 * Canadian National Railway (CN), freight
 * Canadian Pacific Railway (CP), freight
 * VIA Rail (VIA), passenger on CN and CP lines

Companies based outside of Canada

 * Burlington Northern & Gulf Railroad (BN&G), United States, freight

Regional railways

 * Great Western Railway (GWR), freight and passenger

Shortline and terminal railways

 * Great Sandhills Railway (GSR), freight
 * Long Creek Railroad (LCRI), freight
 * Poplar River Mine Railway (PRMX), freight
 * Stewart Southern Railway (SSS), freight
 * Thunder Rail (TR), freight
 * Torch River Rail (TRRR), freight
 * Wheatland Rail (WRI), freight

Defunct railways
Years shown here refer to the period in which a given company operated in Saskatchewan; they may have existed elsewhere before or after these years.