Newhey ( archaicallyNew Hey) is a suburban village in the Milnrow area of the Metropolitan Borough of Rochdale, in Greater Manchester, England. It lies at the foot of the South Pennines, by Junction 21 of the M62 motorway and on the River Beal, east-southeast of Rochdale, northeast of Manchester.
Historically a part of Lancashire, Newhey was anciently a hamlet within the township of Butterworth. It was described in 1828 as "consisting of several ranges of cottages and two public houses". In the early 19th century a major road was built through Newhey from Werneth to Littleborough. Newhey was incorporated into the Milnrow Urban District in 1894.
Newhey expanded as part of an unplanned process of urbanisation, brought on by the introduction of textile manufacture during the Industrial Revolution, and is now home to the Ellenroad Steam Museum - the engine house of the former Ellenroad Ring Mill, the rest of which was demolished in 1985. It holds the world's largest working steam engine.