South Tyneside is a metropolitan borough in Tyne and Wear in North East England.

It is bordered by four other boroughs - Newcastle upon Tyne and Gateshead to the west, Sunderland in the south, and North Tyneside to the north. The border county of Northumberland lies further north. The borough was formed on 1 April 1974 by the merger of the County Borough of South Shields along with the municipal borough of Jarrow and the urban districts of Boldon and Hebburn from County Durham.

South Tyneside forms part of the Tyneside conurbation, the sixth largest in the United Kingdom, with a geographical area of 64.43 km² (24.88 sq mi) and an estimated population of 153,700 (Mid-year 2010). It is bordered to the east by the North Sea and to the north by the River Tyne. A Green Belt of 23.64 km² (9.13 sq mi) is at its southern boundary.

The main administrative centre and largest town is South Shields. Other riverside towns are Jarrow and Hebburn, while the villages of Cleadon, Whitburn and The Boldons border the South Tyneside green belt which borders Wearside to the south at Sunderland.

Coordinates: 54°59′15″N 1°27′30″W / 54.9875°N 1.45833°W / 54.9875; -1.45833

Tyneside is a conurbation in North East England, defined by the Office of National Statistics, which is home to over 80% of the population of Tyne and Wear. It includes the city of Newcastle upon Tyne and the Metropolitan Boroughs of Gateshead, North Tyneside and South Tyneside — all settlements on the banks of the River Tyne. The population of the conurbation was 879,996 according to the census of 2001, the 6th largest conurbation in the UK. The only large settlement in Tyne and Wear that is not part of the Tyneside conurbation is Sunderland which is on Wearside.

The people of the Tyneside area are called "Geordies" and are noted for their distinctive dialect and accent. Tynesiders may have been given this name, a local diminutive of the name "George", because their miners used George Stephenson's safety lamp (called a "Georgie lamp") to prevent firedamp explosions, rather than the Davy lamp used elsewhere. An alternative explanation is that during the Jacobite risings they declared their allegiance to the Hanoverian kings of Great Britain George I and George II; whereas the rest of the county of Northumberland, to the north, was loyal to James Francis Edward Stuart. Cheryl Cole is from this part of England, hence her accent.