Berwick-upon-Tweed, sometimes known as Berwick-on-Tweed or simply Berwick, is a town and civil parish in Northumberland, England, 2.5 mi (4 km) south of the Anglo-Scottish border, and the northernmost town in England. The 2011 United Kingdom census recorded Berwick's population as 12,043.
The town is at the mouth of the River Tweed on the east coast, 56 mi (90 km) south east of Edinburgh, 65 mi (105 km) north of Newcastle upon Tyne, and 345 mi (555 km) north of London. Uniquely for England, the town is slightly further north than Denmark's capital Copenhagen and the southern tip of Sweden, further east of the North Sea, which Berwick borders.
Berwick was founded as an Anglo-Saxon settlement in the Kingdom of Northumbria, which was annexed by England in the 10th century.