John Michael Harold Copley (born 12 June 1944) is a British theatre and opera producer.
He was born in Birmingham, West Midlands, son of Ernest Harold Copley and Lilian Forbes, and attended King Edward VI Five Ways. After a brief career as an actor, he became stage manager at Sadler's Wells in 1953 and resident producer for the Covent Garden Opera Company in 1972. He has produced most of the standard operatic repertoire for many opera houses and festivals in Europe, USA and Canada. He has had a long association with Opera Australia, including the Australian premiere of Leoš Janáček’s Jenůfa in 1984.
On 3 January 2010 he was the guest on the long running BBC Radio 4 programme Desert Island Discs, becoming the decade's first guest on the show.
For over 50 years Copley has been the partner of John Hugh Chadwyck-Healey (b. 1922), grandson of Charles Chadwyck-Healey the 1st Baronet. In 2006, they contracted a civil partnership which Copley described in the BBC Radio 4 Desert Island Discs programme in January 2010. The event is recorded in his Who's Who entry.
The filmed operas he has been associated with are: