| Class: | Listed |
| Horse Race: | Doonside Cup |
| Location: | Ayr Racecourse Ayr, Scotland |
| Race Type: | Flat / Thoroughbred |
| Sponsor: | Virgin Bet |
| Website: | Ayr |
| Distance: | 1m 2f (2,012 metres) |
| Surface: | Turf |
| Track: | Left-handed |
| Qualification: | Three-years-old and up |
| Weight: | 8 st 12 lb (3yo); 9 st 3 lb (4yo+) Allowances 5 lb for fillies Penalties 7 lb for G1 / G2 winners* 5 lb for G3 winners* 3 lb for Listed winners* * after 31 March |
| Purse: | £50,000 (2022) 1st: £30,000 |
|}The Doonside Cup is a Listed flat horse race in Great Britain open to horses aged three years or older. It is run at Ayr over a distance of 1 mile and 2 furlongs (2,012 metres), and it is scheduled to take place each year in September. It is currently held on the final day of Ayr's three-day Ayr Gold Cup Festival (previously the Western Meeting).
| border="1" style="border-collapse: collapse; font-size:90%" | ||||||
| Year | Winner | Age | Jockey | Trainer | Time | |
|---|---|---|---|---|---|---|
| 1988 | Per Quod | 3 | Bruce Raymond | Ben Hanbury | 2:26.17 | |
| 1989 | Shellac | 3 | Frankie Dettori | Luca Cumani | 2:26.08 | |
| 1990 | Pirate Army | 4 | Frankie Dettori | Luca Cumani | 2:23.07 | |
| 1991 | Azzaam | 4 | Willie Carson | John Dunlop | 2:13.31 | |
| 1992 | Linpac West | 6 | John Carroll | John Spearing | 2:25.85 | |
| 1993 | John Balliol | 5 | Kevin Darley | David Loder | 2:17.29 | |
| 1994 | Dancing Bloom | Willie Carson | Sir Michael Stoute | 2:22.31 | ||
| 1995 | Annus Mirabilis | Darryll Holland | Sir Michael Stoute | 2:17.04 | ||
| 1996 | Key To My Heart | Jason Weaver | Sally Hall | 2:15.43 | ||
| 1997 | Ghataas | Richard Hills | John Dunlop | 2:19.00 | ||
| 1998 | Largesse | John Egan | John Berry | 2:28.83 | ||
| 1999 | Leggera | 4 | Richard Quinn | John Dunlop | 2:22.95 | |
| 2000 | Island House | Michael Roberts | Geoff Wragg | 2:23.08 | ||
| 2001 | Albarahin | 6 | Richard Hills | Marcus Tregoning | 2:17.80 | |
| 2002 | Island House | 6 | Darryll Holland | Geoff Wragg | 2:17.81 | |
| 2003 | Imperial Dancer | 5 | Ted Durcan | Mick Channon | 2:15.56 | |
| 2004 | Into The Dark | 3 | Kerrin McEvoy | Saeed bin Suroor | 2:27.85 | |
| 2005 | Fruhlingssturm | 5 | Neil Callan | Michael Jarvis | 2:10.77 | |
| 2006 | Mashaahed | 3 | Ryan Moore | Barry Hills | 2:11.08 | |
| 2007 | Anna Pavlova | 4 | Paul Hanagan | Richard Fahey | 2:13.56 | |
| 2008 | Lady Deauville | 3 | Franny Norton | Paul Blockley | 2:20.34 | |
| 2009 | Prince Siegfried | 3 | Frankie Dettori | Saeed bin Suroor | 2:06.00 | |
| 2010 | Vesuve | 4 | Frankie Dettori | Saeed bin Suroor | 2:06.20 | |
| 2011 | Poet | 6 | Adam Kirby | Clive Cox | 2:15.63 | |
| 2012 | Opera Gal | 5 | Jim Crowley | Andrew Balding | 2:13.94 | |
| 2013 | Sharestan | 5 | Kieren Fallon | Saeed bin Suroor | 2:14.31 | |
| 2014 | Sennockian Star | 4 | Franny Norton | Mark Johnston | 2:06.31 | |
| 2015 | Scottish | 3 | David Probert | Andrew Balding | 2:05.67 | |
| 2016 | Secret Number | 6 | Danny Tudhope | Saeed bin Suroor | 2:09.39 | |
| 2017 | no race | |||||
| 2018 | Dolphin Vista | 5 | Danny Tudhope | Ralph Beckett | 2:13.95 | |
| 2019 | Encapsulation | 3 | Ben Curtis | Andrew Balding | 2:11.99 | |
| 2020 | Addeybb | 6 | Tom Marquand | William Haggas | 2:11.48 | |
| 2021 | Maydanny | 5 | Joe Fanning | Mark Johnston | 2:06.93 | |
| 2022 | Royal Champion | 4 | Jack Mitchell | Roger Varian | 2:06.20 | |
| 2023 | Royal Rhyme | 3 | Clifford Lee | Karl Burke | 2:06.26 | |
| 2024 | Persica | 3 | Sean Levey | Richard Hannon Jr. | 2:05.99 |