- Cam ColeFormed / started: 20 November 1992Note: UK one‐man band
- Cat StevensFormed / started: 21 July 1948Note: now known as Yusuf Islam
- Celia ArcherBorn in: LondonDecade started: 1980s
- Cenzo TownshendDecade started: 1960sGenres: rock music
- Charlie AndrewDecade started: 2000sGenres: rock music
- Charlie BarnesBorn in: LeedsDecade started: 2000s
- Charlie HugallDecade started: 2000sGenres: rock music
- Charlotte GreigFormed / started: 10 August 1954Split up / ended: 19 June 2014
- Chaz JankelFormed / started: 16 April 1952Note: English musician and songwriter
- Chesney HawkesFormed / started: 22 September 1971Note: British pop singer, songwriter, and occasional actor
- Chloe DrinkwaterBorn in: ScunthorpeDecade started: 1990s
- Chris ChildsBorn in: WrittleDecade started: 1950s
- Chris CrossFormed / started: 14 July 1952Split up / ended: 25 March 2024
- Chris de BurghFormed / started: 15 October 1948Note: British-Irish singer-songwriter and instrumentalist
- Chris NormanFormed / started: 25 October 1950Note: English soft rock singer
- Chris ReaFormed / started: 4 March 1951Split up / ended: 22 December 2025
- Chris SquireFormed / started: 4 March 1948Note: Yes bassist
- Chris ThompsonFormed / started: 9 March 1947Note: vocalist with Manfred Mann’s Earth Band
- Chris TsangaridesBorn in: BanburyDecade started: 1970s
- Chris WhittenBorn in: LeedsDecade started: 1950s
- Chris WoodFormed / started: 24 June 1944Note: rock musician, member of Traffic
- Chris YouldenFormed / started: 1 January 1943Split up / ended: 4 April 2025
- Christian Smith-PancorvoDecade started: 1990sGenres: rock music
- Christopher LeeFormed / started: 27 May 1922Note: English actor and singer
- CJ WildheartDecade started: 1980sGenres: rock music
- Cleveland WatkissBorn in: Hackney CentralDecade started: 1950s
- Cliff DaviesFormed / started: 1948Split up / ended: 13 April 2008
- Cliff WilliamsBorn in: RomfordDecade started: 1970s
- Clifford T. WardFormed / started: 10 February 1944Split up / ended: 18 December 2001
- Clint WarwickFormed / started: 25 June 1940Split up / ended: 15 May 2004
- Clive BurrBorn in: East HamDecade started: 1970s
- Clive JohnDecade started: 2000sGenres: rock music
- Clive LangerBorn in: HampsteadDecade started: 1950s
- Clive MartinBorn in: LondonDecade started: 1980s
- Clive SarstedtBorn in: AjmerDecade started: 1950s
- Colin HantonBorn in: LiverpoolDecade started: 1950s
- Colin ThurstonBorn in: SingaporeDecade started: 1970s
- Colin WalkerDecade started: 1940sGenres: rock music
- Connor MacLeodBorn in: LondonDecade started: 1980s
- Conrad LantBorn in: LondonDecade started: 1970s
- Courtney HadwinBorn in: SunderlandDecade started: 2010s
- Cozy PowellFormed / started: 29 December 1947Split up / ended: 5 April 1998
- Craig AdamsBorn in: OtleyDecade started: 1980s
- Craig DouglasFormed / started: 12 August 1941Split up / ended: 4 September 2026
- Craig DouglasBorn in: NewportDecade started: 1950s
- Crispin GrayBorn in: IslingtonDecade started: 1980s
- CronosFormed / started: 15 January 1963Split up / ended: 1 October 2026
- Cyril DaviesFormed / started: 23 January 1932Split up / ended: 7 January 1964