Derek Joseph Patrick Leahy (20 May 1937 – 30 August 2020) was a British music industry executive. Leahy first came to prominence as A&R manager at Philips Records in the late 1960s. He managed the Bell Records label in the early 1970s, which had a string of hits in the U.K. He formed the equally successful label GTO Records in 1974 before moving into music publishing in the 1980s, notably working with Wham! and George Michael.