Newcastle upon Tyne often shortened to Newcastle is a city and metropolitan borough in Tyne and Wear, North East England.

Historically the county town of Northumberland, of which it was part until 1974, it is situated on the north bank of the River Tyne centred 8.5 mi (13.7 km) from the North Sea. The city grew up in the area that was the location of the Roman settlement called Pons Aelius, though it owes its name to the castle built in 1080, by Robert (II), Duke of Normandy, "Curthose", William the Conqueror's eldest son. The city grew as an important centre for the wool trade and it later became a major coal mining area. The port developed in the 16th century and, along with the shipyards lower down the river, was amongst the world's largest shipbuilding and ship-repairing centres. These industries suffered decline and closure. Newcastle'e economy includes a place as a corporate headquarters, learning, digital technology, retail, tourism and cultural centre.
Among its main icons are Newcastle Brown Ale, a leading brand of beer, Newcastle United F.C., a Premier League team, and the Tyne Bridge. It has hosted the world's most popular half marathon, the Great North Run, since it began in 1981.
The city is at the urban core of the Tyneside conurbation, which is the sixth most populous conurbation in the United Kingdom. Newcastle is a member of the English Core Cities Group and with Gateshead the Eurocities network of European cities.
The regional nickname and dialect for people from Newcastle and the surrounding area is Geordie.