Dinting Viaduct is a 19th-century railway viaduct in Glossopdale in Derbyshire, England, and carries the Glossop Line over a valley at the village of Dinting. It crosses the Glossop Brook river and the A57 road between Manchester and Sheffield. First opened in 1844 as part of the original Woodhead Line, the viaduct has been modified a number of times, most notably the addition of seven brick strengthening piers in 1918–20.