John Hardress Wilfred Lloyd CBE is a British comedy writer and television producer. Lloyd was Trinity College, Cambridge, where he befriended and later shared a flat with Douglas Adams. He worked as a radio producer at the BBC 1974–1978 and created The News Quiz, The News Huddlines, To The Manor Born (with Peter Spence) and Quote... Unquote (with Nigel Rees). He wrote Hordes of the Things with Andrew (A. P. R.) Marshall, co-authored two episodes of Doctor Snuggles with Douglas Adams and then went on to co-write the fifth and sixth episodes of the first radio series of The Hitchhikers Guide to the Galaxy with him. Lloyd then worked as a TV producer at both the BBC and ITV 1979–1989 where he created Not the Nine OClock News (with Sean Hardie) and Spitting Image (with Peter Fluck and Roger Law). He also produced all 4 Blackadder series. Lloyd was originally to have been the host of BBC topical news quiz Have I Got News For You, but was replaced by Angus Deayton.

His first new TV series for 14 years, QI (short for Quite Interesting, and a deliberate reversal of IQ), starring Stephen Fry and Alan Davies, began on 11 September 2003 at 10pm on BBC2 for a run of 12 episodes. In its eighth series, which started on BBC One in September 2010, Lloyd appeared as a panelist in one of the episodes. All the episodes of QI (including the pilot) have been directed by Ian Lorimer. Lloyd currently presents the radio series, The Museum of Curiosity (2008), which he co-created with producers Richard Turner & Dan Schreiber and former co-host Bill Bailey. Lloyd was appointed Commander of the Order of the British Empire (CBE) in the 2011 New Year Honours for services to broadcasting.