Oldbury is a market town in the Metropolitan Borough of Sandwell, West Midlands, England. It is the administrative centre of the borough. At the 2011 census, the town had a population of 13,606, while the 2017 population of the wider built-up area was estimated at 25,488. Sandwell Metropolitan Borough Council, which defines Oldbury Town as consisting of the wards of Bristnall, Langley, Oldbury, and Old Warley, gave the population as 50,641 in 2011.

Sandwell is a metropolitan borough of the West Midlands county in England. The borough is named after the Sandwell Priory, and spans a densely populated part of the West Midlands conurbation. Sandwell Metropolitan Borough Council defines the borough as the six amalgamated towns of Oldbury, Rowley Regis, Smethwick, Tipton, Wednesbury and West Bromwich. Rowley Regis includes the towns of Blackheath and Cradley Heath.