The Providence/Stoughton Line is a line of the MBTA Commuter Rail system running southwest from Boston, Massachusetts, USA. The main line was originally built by the Boston and Providence Rail Road, and now carries service between Boston and Wickford Junction in North Kingstown, Rhode Island. The Stoughton Branch, built as the Stoughton Branch Railroad, splits at Canton Junction and runs for two more stations to Stoughton Station in the town of the same name.