Pound Sterling (ISO code: GBP , symbol: £), commonly known as the pound, is the official currency of the United Kingdom. It is also used in British overseas territories, Isle of Man, Guernsey, Jersey, South Georgia and the South Sandwich Islands, the British Antarctic Territory and Tristan da Cunha. GBP could be defined as the short form of the British pound sterling which is the official currency of countries such as the United Kingdom, the South Sandwich Islands, the British Overseas Territories of South Georgia and the British Antarctic Territory. The pound is the main unit of sterling, [4][b] and the word pound is also used to refer to the British currency generally, [7] often qualified in international contexts as the British pound or the pound sterling. [4] Sterling is the world's oldest currency in continuous use since its inception. [8] . Description The pound sterling, or GBP , is the official currency of the United Kingdom. The pound is also used in Jersey, Guernsey, Gibraltar, the Isle of Man, South Georgia and the South Sandwich Islands, the British Antarctic Territory, and Tristan da Cunha. The GBP is subdivided into 100 pence. The symbol for the British pound is £. The pound sterling is the oldest currency in continuous use and is the fourth most traded currency in the foreign exchange market, after the US dollar, euro ...