Blaenau Gwent County Borough Council (Welsh: Cyngor bwrdeistref Sirol Blaenau Gwent) is the governing body for Blaenau Gwent, one of the Principal Areas of Wales.

The borough council was created in 1974 under the Local Government Act 1972 as a lower-tier district council with borough status. Gwent County Council provided county-level services for the area.^[2] The county council was abolished in 1996 and Blaenau Gwent became a principal area with county borough status, with the council taking over the functions previously performed by the county council.^[3]

Borough status allows Blaenau Gwent to give the chair of the council the title of mayor. However, the council discontinued the role of mayor in 2017, with the last mayor being Barrie Sutton. A presiding member role has been created instead to chair meetings.^[4][5]

The council has been under Labour majority control since the 2022 election.^[6]

The first election to the council was held in 1973, initially operating as a shadow authority before coming into its powers on 1 April 1974. Political control of the council since 1974 has been as follows:^[7]

Lower-tier borough

County borough

Summary of the council composition after council elections, click on the year for full details of each election.^[16]

Party with the most elected councillors in bold. Coalition agreements in notes column

Until 2021 the council was based at Ebbw Vale Civic Centre, which had been built in the 1960s for the former Ebbw Vale Urban District Council. In 2021 the council voted to demolish the civic centre and moved its meeting place and headquarters to the General Office building adjoining Ebbw Vale Town railway station.^[21] The General Office building had been built in 1916 as the offices for the Ebbw Vale Iron and Steel Company.^[22] The refurbished and extended building also serves as a conference centre and houses Gwent Archives.^[23]

Following a review by the Local Democracy and Boundary Commission for Wales the number of electoral wards reduced from 16 to 14 at the 2022 local elections. The number of councillors dropped from 42 to 33.^[24] The following table lists the pre-2022 council wards, as well as communities and associated geographical areas. Communities with a community council are indicated with an asterisk (*).

Joanne Collins, the council's executive member for education and also a governor of her son's primary school took her family on holiday during school term time, "in direct contravention of her department's own policy", reported Private Eye in April 2020. The council reportedly distributes a pamphlet titled "School Attendance - a guide for parents of children starting school" that clearly states Blaenau Gwent Council "requested headteachers do not authorise any holidays in term time". The booklet had been published by Families First, a Welsh Government project, in conjunction with the council. Collins' action reportedly caused resentment among local families who had been refused permission to take a holiday during term time to save on cost. In response, council leader, Nigel Daniels, issued a statement to the South Wales Argus newspaper stating the "holiday in question was authorised ... and fully complied with the policy".^[25]