| Longdendale Urban District | |
| Image Map Caption: | Longdendale UD within Cheshire in 1970 |
| Start: | 1936 |
| End: | 1974 |
| Government: | Longdendale Urban District Council |
Longdendale Urban District (also known as Longendale Urban District) was, from 1936 to 1974, a local government district in the administrative county of Cheshire, England. It encompassed parts of Broadbottom, Hattersley, Hollingworth, Matley and Mottram in Longdendale, all forming part of the non-statutory Longdendale Valley.
The district covered an area close to Cheshire's north-eastern boundary with Derbyshire and was bound (from north to west) by the Municipal Borough of Mossley, Municipal Borough of Stalybridge, Municipal Borough of Dukinfield and Municipal Borough of Hyde. Tintwistle Rural District, from which Longdendale exchanged territory in 1936, lay to the east.
The Urban District was created by the Local Government Act 1894. In 1974, Longdendale Urban District was abolished by the Local Government Act 1972 and its former area was transferred to Greater Manchester to form part of the Metropolitan Borough of Tameside.
A vision of Longdendale UD, visionofbritain.org.uk. URL accessed 1 March 2008.