Cawdor Quarry is a disused quarry, designated a Site of Special Scientific Interest, located in Matlock, Derbyshire.
The stone quarried from Cawdor were laid down in a warm shallow sea 325 million years ago, during the Dinantian Stage of the Carboniferous Period. These rocks contain a variety of shell fossils and microfossils, including molluscs, brachiopods and echinodems. The construction of Hyde Park Corner and the Thames Embankment in London used stone from the quarry.
In 2000, the land was bought by Sainsbury's. They built a new road, bus station and bridge over the River Derwent, as well as the supermarket which opened in 2007. Plans for 400 homes to be built in the quarry were shelved due to the land being contaminated with hydrocarbon.
Peak Rail use part of Cawdor Quarry sidings to connect to the mainline at Matlock.