Oldham /ˈɒldəm/ is a large town in Greater Manchester, England. It lies amid the Pennines on elevated ground between the rivers Irk and Medlock, 5.3 miles (8.5 km) south-southeast of Rochdale, and 6.9 miles (11.1 km) northeast of the city of Manchester. Oldham is surrounded by several smaller towns that together form the Metropolitan Borough of Oldham, of which Oldham is the administrative centre.