This is a list of champions on the game show Countdown. These are players who have won up to eight games and scored enough points to qualify for their series' finals. Here, they were one of eight contestants invited back to compete in a knockout tournament to decide who will become the series champion. This list also includes winners of Champion of Champions tournaments and the winner of Series 33, which was designated a "Supreme Championship".
There was only one full series in 2005 because of Richard Whiteley's death — his final series, Series 53, was recorded before he was hospitalised with pneumonia. Series 54 began four months later on 31 October 2005 and, having started very late in the year, was extended to last until 26 May 2006. Series champions from this series onwards are awarded the Richard Whiteley Memorial Trophy along with the usual prize of the Oxford English Dictionary. The most recent Countdown winner is Graeme Cole, after winning the final on 16 December 2011, and the most recent Champion of Champions winner is Steven Briers, who won the Champion of Champions final on January 30th 2009.
| Year | Series | Winner | |
|---|---|---|---|
| 1982 | 1 | Joyce Cansfield | |
| 1983 | 2 | Ash Haji | |
| 3 | Andrew Guy | ||
| 1984 | 4 | Brian Hudson | |
| Champion of Champions I: Mark Nyman | |||
| 5 | Peter Evans | ||
| 1985 | 6 | Darryl Francis | |
| 7 | Ian Bebbington | ||
| 1986 | 8 | Clive Spate | |
| Champion of Champions II: Clive Freedman | |||
| 9 | David Trace | ||
| 10 | Harvey Freeman | ||
| 1987 | 11 | John Clarke | |
| 12 | Stephen Balment | ||
| Champion of Champions III: Harvey Freeman | |||
| 13 | Hilary Hopper | ||
| 14 | Nic Brown | ||
| 1988 | 15 | Dick Green | |
| 16 | Tony Vick | ||
| 1989 | Champion of Champions IV: Nic Brown | ||
| 17 | Lawrence Pearse | ||
| 18 | Rajaretnam 'Yoga' Yogasagarar | ||
| 1990 | 19 | Michael Wareham | |
| 20 | Liz Barber | ||
| 1991 | Champion of Champions V: Tim Morrissey | ||
| 21 | Janet Treadaway | ||
| 22 | Chris Waddington | ||
| 1992 | 23 | Gareth Williams | |
| 24 | Wayne Summers | ||
| 1993 | Champion of Champions VI: Wayne Summers | ||
| 25 | Don Reid | ||
| 26 | Andy Bodle | ||
| 1994 | 27 | David Elias | |
| 28 | Damian Eadie | ||
| 1995 | Champion of Champions VII: Don Reid | ||
| 29 | Darren Shacklady | ||
| 30 | Verity Joubert | ||
| 1996 | 31 | David Acton | |
| 32 | Alan Sinclair | ||
| Champion of Champions VIII: Chris Rogers | |||
| 33 (Supreme Championship) | Harvey Freeman | ||
| 1997 | 34 | Huw Morgan | |
| 35 | Peter Cashmore | ||
| 36 | Tony Baylis | ||
| 37 | Ray McPhie | ||
| 1998 | Champion of Champions IX: Natascha Kearsey | ||
| 38 | John Ashmore | ||
| 39 | Kate Ogilvie | ||
| 1999 | 40 | Terence English | |
| 41 | Scott Mearns | ||
| Champion of Champions X: Scott Mearns | |||
| 2000 | 42 | Michael Calder | |
| 43 | Graham Nash | ||
| 2001 | 44 | Stuart Wood | |
| 45 | John Rawnsley | ||
| 46 | Ben Wilson | ||
| 2002 | 47 | Chris Wills | |
| 48 | Julian Fell | ||
| 2003 | Champion of Champions XI: Graham Nash | ||
| 49 | John Davies | ||
| 50 | Chris Cummins | ||
| 2004 | 51 | Stewart Holden | |
| 52 | Mark Tournoff | ||
| 2005 | 53 | John Mayhew | |
| 2006 | 54 | Conor Travers | |
| Champion of Champions XII: Paul Gallen | |||
| 55 | Richard Brittain | ||
| 2007 | 56 | Nick Wainwright | |
| 57 | Craig Beevers | ||
| 2008 | 58 | David O'Donnell | |
| 59 | Junaid Mubeen | ||
| 2009 | Champion of Champions XIII: Steven Briers | ||
| 60 | Kirk Bevins | ||
| 61 | Chris Davies | ||
| 2010 | 62 | Oliver Garner | |
| 63 | Jack Hurst | ||
| 2011 | 64 | Edward McCullagh | |
| 65 | Graeme Cole | ||