Yarm Viaduct is a railway viaduct carrying the railways above the town of Yarm in North Yorkshire, England. It crosses the River Tees which forms the boundary between North Yorkshire and County Durham. The railway runs between Northallerton and Eaglescliffe, and was opened in 1852 as part of the extension of the Leeds Northern Railway to Stockton-on-Tees. The line and viaduct are currently owned and maintained by Network Rail and carries passenger traffic for TransPennine Express and Grand Central train operating companies. It also sees a variety of freight traffic.