| Blyth Valley | |
| Type: | Former Borough |
| Blank Emblem Type: | Arms of the Borough Council |
| Mapsize: | frameless |
| Subdivision Type: | Sovereign state |
| Subdivision Name: | United Kingdom |
| Subdivision Type1: | Constituent country |
| Subdivision Name1: | England |
| Subdivision Type2: | Region |
| Subdivision Name2: | North East England |
| Subdivision Type3: | Administrative county |
| Subdivision Name3: | Northumberland |
| Seat Type: | Admin. HQ |
| Seat: | Blyth |
| Government Type: | Blyth Valley Borough Council |
| Leader Title: | Leadership |
| Leader Name: | Leader & Cabinet |
| Leader Title1: | MPs |
| Leader Name1: | Ian Levy |
| Established Title: | Founded |
| Established Date: | 1 April 1974 |
| Extinct Title: | Abolished |
| Extinct Date: | 1 April 2009 |
| Population Density Km2: | auto |
| Timezone: | Greenwich Mean Time |
| Utc Offset: | +0 |
| Timezone Dst: | British Summer Time |
| Utc Offset Dst: | +1 |
| Postal Code Type: | Postcode |
| Blank Name: | ISO 3166-2 |
| Blank1 Name: | ONS code |
| Blank1 Info: | 35UD |
| Blank2 Name: | OS grid reference |
| Blank3 Name: | NUTS 3 |
| Blank4 Name: | Ethnicity |
| Website: | blythvalley.gov.uk |
Blyth Valley was a local government district with borough status in south-east Northumberland, England, bordering the North Sea and Tyne and Wear. The two principal towns were Blyth and Cramlington. Other population centres include Seaton Delaval, and Seaton Sluice.
The borough was formed on 1 April 1974 by the merger of the borough of Blyth, part of Seaton Valley urban district and part of the borough of Whitley Bay.[1]
The district council was abolished as part of the 2009 structural changes to local government in England effective from 1 April 2009 with responsibilities being transferred to Northumberland County Council, a unitary authority.