The pound sterling (symbol: £, ISO code: GBP), commonly simply called the pound, is the currency of the United Kingdom, its Crown dependencies (the Isle of Man and the Channel Islands) and the British Overseas Territories of South Georgia and the South Sandwich Islands, British Antarctic Territory and Tristan da Cunha. It is subdivided into 100 pence (singular: penny).
The Channel Islands and the Isle of Man produce their own local issues of sterling, Jersey pound, and Guernsey pound. The pound sterling is also used in Gibraltar (alongside the Gibraltar pound), the Falkland Islands (alongside the Falkland Islands pound) and Saint Helena and Ascension (alongside the Saint Helena pound). The Gibraltar, Falkland Islands and Saint Helena pounds are separate currencies, pegged at parity to the pound sterling.
Sterling is the third-largest reserve currency, after the US dollar and the euro. The pound sterling is also the fourth-most-traded currency in the foreign exchange market after the US dollar, the euro, and the Japanese yen.