This is a summary of 2003 in music in the United Kingdom.

Events

Classical music

Both Andrew Glover and Peter Maxwell Davies produced several new orchestral/instrumental works. British film score composer Rachel Portman produced an opera, The Little Prince, commissioned by the Houston Opera and premièred in the USA. Michael Nyman, during his period as Composer-in-Residence at Badisches Staatstheater in Karlsruhe, Germany, produced his Violin Concerto and an opera Man and Boy: Dada, with libretto by Michael Hastings. It was premièred at the Badisches Staatstheater Karlsruhe in the following year.

Other classical works

Opera

Film and incidental music

Musical films

Deaths

Music awards

BRIT Awards

The 2003 BRIT Awards winners were:

Ivor Novello Awards

The winners of the Ivor Novello Awards were:

Mercury Music Prize

The 2003 Mercury Music Prize was awarded to Dizzee Rascal – Boy in Da Corner.

Popjustice £20 Music Prize

The 2003 Popjustice £20 Music Prize was awarded to Girls Aloud for their song No Good Advice from the album Sound of the Underground.

The Record of the Year

The Record of the Year was awarded to "Mandy" by Westlife.