This is a summary of 1926 in music in the United Kingdom.

• c. May – Socialist composer Rutland Boughton stages a performance of his Nativity opera Bethlehem (1915) at Church House, Westminster, in a staging explicitly referencing the 1926 United Kingdom general strike.^[1]
• 6 May – In the midst of the General Strike, a concert of Leos Janácek's work is held at the Wigmore Hall, attended by the composer himself.^[2]
• 20 October – Ethel Smyth's opera Entente Cordiale receives its first public stage performance in Bristol, having been premièred by students at the Royal College of Music the previous year.^[3]
• November – Gertrude Lawrence becomes the first British performer to star in a US musical on Broadway, starring in Oh, Kay!.^[4]
• 8 December – The premiere of Dame Ethel Smyth's Sonata in A minor for cello and piano is held in London, nearly 40 years after the work was composed.^[2]
• 14 December – The mother of teenage composer Benjamin Britten brings his work to the attention of Charles Macpherson.^[2]
• 17 December – Composer John Ireland marries Dorothy Phillips, thirty years his junior, at Chelsea Register Office.^[2]
• 26 December – Granville Bantock's incidental music for Macbeth is used for the first time, in a production at the Prince Theatre, London, starring Sybil Thorndike.
• date unknown
  • Operatic baritone Leslie Rands marries his D'Oyly Carte co-star Marjorie Eyre.
  • Eugène Goossens, fils, joins the British National Opera Company as a conductor.^[5]
  • Sir Walford Davies resigns his professorship at University College, Aberystwyth.^[6]
  • The Webber Douglas School of Singing and Dramatic Art is founded by Walter Johnstone Douglas and Amherst Webber in London.^[7]
  • Organist and composer Herbert Brewer receives a knighthood.^[8]

• Eric Coates – "By The Tamarisk"

• Arnold Bax – Symphony No. 2 in E minor and C major
• Rutland Boughton – The Queen of Cornwall, overture
• John Ireland – Three Songs, 1926^[9]
• Ralph Vaughan Williams
  • On Christmas Night (ballet)
  • Piano Concerto in C (movements 1 and 2)^[10]
• Six Studies in English Folk Song^[11]
• Gerald Tyrwhitt – The Triumph of Neptune (ballet)
• Peter Warlock – Capriol Suite

• Ernest Bryson – The Leper’s Flute, with libretto by Ian Colvin^[12]

• May – Yvonne by Percy Greenbank, Jean Gilbert and Vernon Dukelsky,^[13] opens at Daly's Theatre, London.

• 3 January – Sir George Martin, record producer (died 2016)^[14]
• 21 January – Brian Brockless, organist, composer, and conductor (died 1995)
• 11 February – Alexander Gibson, conductor and founder of the Scottish Opera (died 1995)^[15]
• 20 February – Gillian Lynne, choreographer (died 2018)^[16]
• 14 March – Lita Roza, singer (died 2006)^[17]
• 31 May — Duncan Campbell, trumpeter (died 2013)
• 2 July – Morag Beaton, operatic soprano (died 2010)^[18]
• 18 July – Bryan Johnson, singer (died 1995)
• 17 August – George Melly, jazz singer (died 2007)^[19]
• 17 November – Robert Earl, singer
• 30 December – Stan Tracey, jazz pianist and composer (died 2013)^[20]

• 8 June – John Hornsey Casson, hymn-tune composer, 82^[21]
• 12 July – Charles Wood, composer, 60^[22]
• 2 November – John Le Hay, Irish-born musical comedy performer, 72
• 4 November – Robert Newman, co-founder of the Proms, 68

• 1926 in the United Kingdom
• List of British films of 1926