Guy Jeffrey Barker MBE (born 26 December 1957) is an English jazz trumpeter and composer. Barker was born in Chiswick, London, the son of an actress and a stuntman. He started playing the trumpet at the age of twelve, and within a year had joined the National Youth Jazz Orchestra. After lessons from Clark Terry in 1975, Barker went on in the 1980s to play with John Dankworth, Gil Evans (with whose orchestra he toured and recorded in 1983), Lena Horne and Bobby Watson.
Barker was a member of Clark Tracey's quintet from 1984 to 1992, and continues to play with Tracey. As a sideman he has played with many major musicians and groups, including Ornette Coleman, Carla Bley, Georgie Fame, James Carter, Mike Westbrook, Frank Sinatra, Colin Towns, Natalie Merchant, ABC, The The, Haircut One Hundred, Erasure, Chris Botti, Wham!, Kajagoogoo, The Housemartins, Matt Bianco, Alphaville, The Style Council, The Moody Blues, Sting, Bucks Fizz, Mike Oldfield, Cleo Laine, Acoustic Alchemy, XTC and Stan Tracey.
Previously, his own band has featured an international mix of musicians – Perico Sambeat (alto saxophone; Spain), Bernardo Sassetti (piano; Portugal), Geoff Gascoyne (bass, United Kingdom), and Gene Calderazzo (drums; United States)
More recently he has toured the Guy Barker Jazz Orchestra – a 15 piece big band featuring Rosario Giuliani (alto saxophone; Italy) and Per Johansson (tenor saxophone; Sweden) - performing DZF, a reworking of Mozart's Magic Flute with Michael Brandon narrating the story as a Raymond Chandler style pulp fiction novel, retold by Robert Ryan
Guy Barker was Musical Director / Arranger for the opening gala concert "Jazz Voice : Celebrating a century of song" at the London Jazz Festival annually from 2008 to 2014. He was also Musical Director / Arranger on a number of BBC Radio 2 Friday night is music night shows featuring the Guy Barker Jazz Orchestra with the BBC Concert Orchestra, celebrating the music of Billie Holiday / Duke Ellington and Billy Strayhorn / Ella Fitzgerald, Aretha Franklin and Dusty Springfield / Jazz Royalty to celebrate the Wedding of William and Kate
Barker was appointed Member of the Order of the British Empire (MBE) in the 2015 New Year Honours for services to jazz. He was awarded the BASCA/PRS Gold Badge in 2013.