This is a summary of 1943 in music in the United Kingdom.

Events
 January 
The Committee for the Promotion of New Music (later renamed Society for the Promotion of New Music) is founded by Francis Chagrin in London with the intention of promoting the creation, performance and appreciation of new music by young and unestablished composers. Ralph Vaughan Williams agrees to be president, with Arthur Bliss the committee's vice-president. 
Arthur Bliss's Piano Concerto and William Walton's Belshazzar's Feast are recorded under the auspices of the British Council.
27 March – Michael Tippett's String Quartet No. 2 is first performed in London.
 24 June – Ralph Vaughan Williams conducts the London Philharmonic Orchestra in the premiere of his Fifth Symphony at a Proms Concert in the Royal Albert Hall.
 15 October – first performance of Benjamin Britten's Serenade for Tenor, Horn and Strings with soloists Peter Pears and Dennis Brain at the Wigmore Hall.

Popular music
 "Don't Let's Be Beastly To The Germans" w.m. Noël Coward
 "Silver Wings In The Moonlight" w.m. Hughie Charles, Sonny Miller & Leo Towers

Classical music: new works
 Benjamin Britten 
 Rejoice in the Lamb, festival cantata
 Serenade for Tenor, Horn and Strings
 Ralph Vaughan Williams 
 The Story of a Flemish Farm
 Symphony No. 5 in D Major
 William Walton 
 The Quest (ballet)
 Violin Concerto (reorchestrated)

Film and Incidental music
 Ralph Vaughan Williams – The Flemish Farm

Musical theatre
17 April – Show Boat (Jerome Kern and Oscar Hammerstein II) – London revival opens at the Stoll Theatre and runs for 264 performances.
10 June – Sweet And Low London revue opens at the Ambassadors Theatre and runs for 264 performances.
17 June – The Lisbon Story, with music by Harry Parr-Davies, opens at the Hippodrome Theatre and runs for 492 performances.

Musical films
 Miss London Ltd., directed by Val Guest, starring Arthur Askey and Evelyn Dall.
 Rhythm Serenade, starring Vera Lynn and Peter Murray-Hill.
 Variety Jubilee, starring Reginald Purdell and Ellis Irving
 We'll Meet Again released 18 January, starring Vera Lynn, Geraldo and Patricia Roc.

Births
7 January – Richard Armstrong, organist and conductor
16 January
Brian Ferneyhough, composer
Gavin Bryars, composer
28 January – Dick Taylor, bass player, songwriter, and producer (The Rolling Stones, The Pretty Things, and The Mekons)
29 January 
Tony Blackburn, DJ
Mark Wynter, singer
16 February – Howard Riley, English pianist and composer
25 February – George Harrison, guitarist, singer and songwriter (died 2001)
9 March – David Matthews, composer
22 March – Keith Relf, lead vocalist and harmonica player of the Yardbirds (died 1976)
29 March – Eric Idle, actor, writer, and songwriter
16 April
Ruth Madoc, actress and singer (d. 2022)
Lonesome Dave Peverett, English singer-songwriter and guitarist (d. 2000)
17 April – Elinor Bennett, harpist
20 April – Sir John Eliot Gardiner, conductor
25 April – Tony Christie, singer
8 May  
Jon Mark, English-New Zealand singer-songwriter and guitarist (Sweet Thursday and Mark-Almond)
Paul Samwell-Smith, bass player and producer (The Yardbirds and Box of Frogs)
11 May – Les Chadwick, bass player (Gerry and the Pacemakers) (died 2019)
14 May – Jack Bruce, vocalist, guitarist and composer (died 2014)
15 June – Muff Winwood, record producer, songwriter, and bass player 
26 July – Mick Jagger, singer and actor (The Rolling Stones)
28 July – Richard Wright, keyboardist (Pink Floyd) (died 2008)
24 August – Dafydd Iwan, musician and politician
6 September – Roger Waters (Pink Floyd)
30 September – Philip Moore, organist and composer
3 November – Bert Jansch, folk musician (died 2011)
30 November – Leo Lyons, bassist
17 December – Dave Dee, singer (died 2009)

Deaths
7 February – Clara Novello Davies, singer, mother of Ivor Novello, 81
28 March – Ben Davies, operatic tenor, 85
14 April – Geoffrey Shaw, church musician and composer, 63
25 April – William Edward Wadely, organist and composer, 89
3 May – Leslie Heward, conductor and composer, 45
30 July – Benjamin Dale, composer, 58
28 November – Arthur Catterall, violinist and conductor, 60
16 December – William Wallace, composer, 80

See also
 1943 in British television
 1943 in the United Kingdom
 List of British films of 1943

References

 
British Music, 1946 In
British music by year
1940s in British music