Ballymena United Football Club is a semi-professional football club from Northern Ireland. Based in Ballymena, County Antrim, the team competes in the NIFL Premiership and plays home matches at the Ballymena Showgrounds. The club has been managed by former captain Jim Ervin since 2023.

The club was formed in 1934 after the dissolution of Ballymena, a club formed on 7 April 1928 when four local businessmen and football enthusiasts decided that the town of Ballymena needed a senior football team in the Irish League. Nicknamed the 'Braidmen' or 'Sky Blues', latterly because of the colour of the home shirts, United have a rich history in Irish Cup, having won the competition five times. The main club rivals of Ballymena United are Coleraine. The annual Boxing Day derby fixture between the two teams attracts large crowds and is one of the high-profile fixtures in the Northern Irish football league calendar.