The Alnwick branch line is a partly closed railway line in Northumberland, northern England. A heritage railway currently operates a mile of the line, which originally ran from Alnmouth railway station, on the East Coast Main Line, to the town of Alnwick, a distance of 2+3⁄4 miles (4.4 km). It opened on 5 August 1850 to both freight and passenger traffic. Passenger operations included direct Newcastle to Alnwick services, as well as regular shuttle runs between Alnmouth and Alnwick. As late as 1966, some of the Alnmouth to Alnwick shuttles were still operated by steam locomotives.