Dennis Farnon (13 August 1923 – 21 May 2019) was a Canadian musical arranger, composer and orchestra conductor. Dennis Farnon was born in 1923 in Toronto, Canada as John Denis Farnon to Robert and Elsie Farnon (née Menzies). He grew up in a musical family, and learned to play the trumpet at age 12. Through his older brother Robert, he enlisted into the Canadian Army Band, also travelling to Europe to entertain the Allied troops during the last years of the war. In his mid-20s, he moved to Chicago where he played in jazz clubs and pursued studies in conducting, arranging, and orchestration, strongly influenced by the works of Maurice Ravel, Claude Debussy, Béla Bartók and Sergey Prokofiev.