- BA RobertsonBorn in: GlasgowDecade started: 1970s
- Baby StaffordDecade started: 1990sGenres: rock music
- Bap KennedyFormed / started: 17 June 1962Split up / ended: 1 November 2016
- Barney JamesFormed / started: 1944Split up / ended: 2016
- Barney JamesBorn in: SalfordDecade started: 1970s
- Barry BlueFormed / started: 4 December 1950Note: singer, producer, and songwriter
- Barry JenkinsFormed / started: 22 December 1944Split up / ended: 27 January 2024
- Ben MatthewsBorn in: HartlepoolDecade started: 1960s
- Benny HillFormed / started: 21 January 1924Split up / ended: 18 April 1992
- Bernie MarsdenFormed / started: 7 May 1951Split up / ended: 24 August 2023
- Bert JanschFormed / started: 3 November 1943Split up / ended: 5 October 2011
- Biff ByfordBorn in: SkelmanthorpeDecade started: 1970s
- Big Jim SullivanFormed / started: 14 February 1941Split up / ended: 2 October 2012
- Bill CurbishleyBorn in: LondonDecade started: 1940s
- Bill FayFormed / started: 9 September 1943Split up / ended: 21 February 2025
- Bill NelsonFormed / started: 18 December 1948Note: English experimental musician
- Bill PriceFormed / started: 8 August 1943Split up / ended: 22 December 2016
- Bill WardFormed / started: 5 May 1948Note: Black Sabbath drummer
- Bill WardBorn in: BirminghamDecade started: 1960s
- Billy BremnerBorn in: AberdeenDecade started: 1960s
- Billy FuryFormed / started: 17 April 1940Split up / ended: 28 January 1983
- Billy FuryBorn in: LiverpoolDecade started: 1940s
- Billy IdolFormed / started: 30 November 1955Note: English rock singer‐songwriter
- Billy SandersBorn in: AshingtonDecade started: 1930s
- Billy ThorpeFormed / started: 29 March 1946Split up / ended: 28 February 2007
- BlackFormed / started: 26 May 1962Note: UK indie pop musician Colin Vearncombe
- Blair CowanDecade started: 1960sGenres: rock music
- Blaze BayleyBorn in: BirminghamDecade started: 1980s
- Bob AndrewsBorn in: FulhamDecade started: 1970s
- Bob AndrewsBorn in: LeedsDecade started: 1960s
- Bob JacksonBorn in: CoventryDecade started: 1940s
- Bob JohnsonFormed / started: 18 March 1944Split up / ended: 15 December 2023
- Bobby TenchFormed / started: 21 September 1944Split up / ended: 19 February 2024
- Bonnie TylerFormed / started: 8 June 1951Split up / ended: 8 July 2026
- BonoboFormed / started: 30 March 1976Note: UK electronic artist Simon Green
- Brendan HillBorn in: LondonDecade started: 1980s
- Brett AndersonFormed / started: 29 September 1967Note: Suede
- Brian BennettFormed / started: 9 February 1940Note: Shadows drummer/library music composer
- Brian BennettBorn in: LondonDecade started: 1950s
- Brian ConnollyFormed / started: 5 October 1945Split up / ended: 9 February 1997
- Brian JonesFormed / started: 28 February 1942Split up / ended: 3 July 1969
- Brian LockingBorn in: BedworthDecade started: 1950s
- Brian MayFormed / started: 19 July 1947Note: Queen guitarist
- Brian TatlerBorn in: StourbridgeDecade started: 1970s
- Brian WilloughbyDecade started: 1940sGenres: rock music
- Bridget St. JohnFormed / started: 4 October 1946Note: singer‐songwriter/guitarist
- Brinsley SchwarzDecade started: 1960sGenres: rock music
- Broderick SmithBorn in: HertfordshireDecade started: 1960s
- Bruce DickinsonFormed / started: 7 August 1958Note: Iron Maiden vocalist
- Bruce DickinsonBorn in: WorksopDecade started: 1970s
- Bruce RowlandBorn in: Park RoyalDecade started: 1940s
- Bryn HaworthBorn in: BlackburnDecade started: 1960s
- BurialFormed / started: August 1979Note: UK dubstep
- Burke ShelleyBorn in: CardiffDecade started: 1960s