Glossop is a town in the Peak District of Derbyshire, England, about 13 miles east of Manchester.

It is mentioned in the Domesday Book and became the property of the monks of Basingwerk Abbey in North Wales. Later on, it became the property of the Dukes of Norfolk. In the nineteenth century it became an important cotton 'mill' town as part of the Industrial Revolution. One of the mills was owned by Edmund Potter, the uncle of Beatrix Potter.

In the early part of the 20th century, the Glossop Estate was sold by the Dukes of Norfolk, and Glossop became a town in its own right.

Nearby, in Gamesley, there are the remains of a Roman fort, named Ardotalia by the Romans, but renamed Melandra by a 19th-century amateur historian.

North of Glossop is the Longdendale valley, with a chain of five reservoirs and the Longdendale Trail, a long distance footpath.

Glossop is also a small town in the Riverland region of South Australia. Berri Estates, the southern hemisphere's largest winery, is located near the center of Glossop. The town was named after Admiral Glossop, an English naval officer. Glossop has a population of around 500 people, it is also the home of its own primary school and one of the region's four high schools. Glossop is also the home of a gallery of Australian aboriginal art, a small deli (in the Australian sense of the word), a petrol station and some hardware shops. It is on the Old Sturt Highway, between the more major towns of Barmera and Berri.

"Glossop" is defined in The Meaning of Liff, by Douglas Adams & John Lloyd, as being a globule of hot food which lands on your friend's newly polished solid wood dining table.