The BBC Concert Orchestra is a British orchestra based in London, one of the British Broadcasting Corporation's five radio orchestras. With around fifty players, it is the only one of the five which is not a full-scale symphony orchestra. The BBC Concert Orchestra is the BBC's most populist ensemble, playing a mixture of classical music, light music and popular numbers. Its primary role is to produce music for radio broadcast, and it is the resident orchestra of the world's longest running live music programme, Friday Night is Music Night on BBC Radio 2.

The parent ensemble of the orchestra was the BBC Theatre Orchestra, which was formed in 1931 and based in Bedford. The orchestra also did opera work and was occasionally billed as the BBC Opera Orchestra. In August 1949, the ensemble was formally renamed the BBC Opera orchestra. In January 1952, the BBC Opera Orchestra was disbanded and the BBC Concert Orchestra was formed from players formerly from the BBC Opera Orchestra.