The New Junction Canal is a canal in South Yorkshire, England. It is part of the Sheffield and South Yorkshire Navigation (S&SYN), although it was jointly funded by the Aire and Calder Navigation, and was opened in 1905. It links the River Don Navigation and the Stainforth and Keadby Canal with the Aire and Calder Navigation (Knottingley Canal). It is completely straight, and was the last canal built in England for commercial purposes.