Erewash (/ˈɛrəwɒʃ/ ^ⓘ) is a local government district with borough status in Derbyshire, England. The borough is named after the River Erewash. The council has offices in both the borough's towns of Ilkeston and Long Eaton. The borough also includes several villages and surrounding rural areas. Some of the built-up areas in the east of the borough form part of the Nottingham Urban Area.

Erewash Borough has military affiliations with 814 Naval Air Squadron Fleet Air Arm based at Royal Naval Air Station (RNAS) Culdrose and the Mercian Regiment of the British Army, as the successors to the local infantry regiment the Sherwood Foresters.

The neighbouring districts are South Derbyshire, Derby, Amber Valley, Broxtowe, Rushcliffe and North West Leicestershire.

The district was formed on 1 April 1974 under the Local Government Act 1972 as one of nine districts within Derbyshire. The new district covered the whole area of two former districts and part of a third, which were all abolished at the same time:^[2][3]

• Ilkeston Municipal Borough
• Long Eaton Urban District
• South East Derbyshire Rural District (part north of the River Derwent, rest went to South Derbyshire)

The new district was named after the River Erewash, which forms the district's eastern boundary.^[4] On 28 June 1974 the district was awarded borough status, allowing the chair of the council to take the title of mayor.^[5]

Erewash Borough Council provides district-level services. County-level services are provided by Derbyshire County Council. Parts of the borough are also covered by civil parishes, which form a third tier of local government.^[7]

The towns of Ilkeston and Long Eaton are both unparished areas.^[19] The rest of the borough is divided into 13 civil parishes. None of the parish councils are styled as town councils.^[20]

The borough has fourteen state secondary schools and 41 primary schools. It is also home to the public (fee-paying) school of Trent College, with its junior/preparatory school, The Elms School.^[21]

Broomfield Hall of Derby College is located in Morley.^[22]

Derby Japanese School (ダービー日本人補習校 Dābī Nihonjin Hoshūkō), a Japanese weekend school, holds its classes in Broomfield Hall.^[22]

In terms of television, the area is served by BBC East Midlands and ITV Central broadcast from the Waltham TV transmitter. ^[23]

Radio stations for the area are:

• BBC Radio Derby on 104.5 FM
• BBC Radio Nottingham on 103.8 FM
• Capital East Midlands on 96.2 FM
• Smooth East Midlands on 106.6 FM
• Greatest Hits Radio Midlands on 106.6 FM
• Erewash Sound, the borough's community based radio station which broadcast from its studios in Ilkeston on 96.8 FM and 103.5FM.^[24]

The local newspapers that cover the area are:

• Ilkeston Advertiser^[25]
• Derbyshire Times
• Nottingham Post
• Nottingham Journal