| Class: | Group 3 |
| Horse Race: | Prix Messidor |
| Location: | Maisons-Laffitte France |
| Inaugurated: | 1949 |
| Race Type: | Flat / Thoroughbred |
| Website: | france-galop.com |
| Distance: | 1,600 metres (1 mile) |
| Surface: | Turf |
| Track: | Straight |
| Qualification: | Three-years-old and up |
| Weight: | 53½ kg (3y); 57½ kg (4y+) Allowances 1½ kg for fillies and mares Penalties 4 kg for Group 1 winners * 4 kg if two Group 2 wins * 3 kg if one Group 2 win * 3 kg if two Group 3 wins * 2 kg if one Group 3 win * * since January 1 |
| Purse: | €80,000 (2016) 1st: €40,000 |
|}The Prix Messidor is a Group 3 flat horse race in France open to thoroughbreds aged three years or older. It is run at Maisons-Laffitte over a distance of 1,600 metres (about 1 mile), and it is scheduled to take place each year in July.
The event was established in 1949, and it was originally held at Saint-Cloud. It was initially called the Prix de Messidor, a name derived from messis, the Latin word for "harvest". The present title, without the "de", was introduced in 1955.
For a period the race was switched between Maisons-Laffitte (1963–65, 1968–69) and Saint-Cloud (1966–67, 1970–72). It began a longer spell at Maisons-Laffitte in 1973.
The race was transferred to Deauville in 1997. It returned to Maisons-Laffitte in 2005.
Most successful horse (2 wins):
----Leading jockey (6 wins):
----Leading trainer (13 wins):
----Leading owner (4 wins):
| border="1" cellpadding="0" style="border-collapse: collapse; font-size:90%" | ||||||||||
| Year | Winner | Age | Jockey | Trainer | Owner | Time | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1978 | width=129px | Cosmopolitan | 3 | width=152px | Philippe Paquet | width=159px | François Boutin | width=164px | Robert Jolibois | |
| 1979 | American Prince | 3 | Willie Carson | Stuart Murless | Burt Bacharach | |||||
| 1980 | Tassmoun | 4 | Yves Saint-Martin | François Mathet | Aga Khan IV | |||||
| 1981 | Ya Zaman | 4 | Yves Saint-Martin | Mitri Saliba | Mahmoud Fustok | 1:36.20 | ||||
| 1982 | Noalcoholic | 5 | George Duffield | Gavin Pritchard-Gordon | William du Pont III | |||||
| 1983 | Pampabird | 4 | Maurice Philipperon | John Cunnington Jr. | Paul de Moussac | 1:35.20 | ||||
| 1984 | Mille Balles | 4 | Freddy Head | André Fabre | Enzo di Nella | 1:37.30 | ||||
| 1985 | Comrade in Arms | 3 | Alfred Gibert | Philippe Lallié | D. W. Molins | 1:36.10 | ||||
| 1986 | Gay Minstrel | 5 | Gary W. Moore | Criquette Head | Jacques Wertheimer | 1:37.00 | ||||
| 1987 | Fitzwilliam Place | 3 | Dominique Boeuf | André Fabre | Bruce McNall | 1:34.50 | ||||
| 1988 | Mill Native | 4 | Cash Asmussen | André Fabre | Paul de Moussac | 1:34.20 | ||||
| 1989 | Polish Precedent | 3 | Cash Asmussen | André Fabre | Sheikh Mohammed | 1:36.30 | ||||
| 1990 | Septieme Ciel | 3 | Freddy Head | Criquette Head | Johnny Jones | 1:41.30 | ||||
| 1991 | Acteur Francais | 3 | Thierry Jarnet | André Fabre | Paul de Moussac | 1:36.08 | ||||
| 1992 | Take Risks | 3 | Mathieu Boutin | Jean Lesbordes | David Tsui | 1:41.00 | ||||
| 1993 | Fanmore | 5 | Thierry Jarnet | André Fabre | Khalid Abdullah | 1:36.30 | ||||
| 1994 | Jeune Homme | 4 | Cash Asmussen | François Boutin | Yoshio Asakawa | 1:39.10 | ||||
| 1995 | Nec Plus Ultra | 4 | Thierry Gillet | Alain de Royer-Dupré | Marquesa de Moratalla | 1:36.50 | ||||
| 1996 | Grey Risk | 3 | Sylvain Guillot | Philippe Demercastel | Ecurie Bader | 1:40.50 | ||||
| 1997 | Neuilly | 3 | Alain Junk | André Fabre | Mrs Paul de Moussac | 1:37.10 | ||||
| 1998 | Fly to the Stars | 4 | Daragh O'Donohoe | Saeed bin Suroor | Godolphin | 1:36.60 | ||||
| 1999 | Dansili | 3 | Olivier Peslier | André Fabre | Khalid Abdullah | 1:33.70 | ||||
| 2000 | Faberger | 4 | L. Hammer-Hansen | Erika Mäder | Wiesenhof Bloodstock | 1:39.50 | ||||
| 2001 | Panis | 3 | Thierry Thulliez | Pascal Bary | Ecurie J. L. Bouchard | 1:38.40 | ||||
| 2002 | Altieri | 4 | Gabriele Bietolini | Vittorio Caruso | Scuderia Incolinx | 1:40.30 | ||||
| 2003 | Special Kaldoun | 4 | Dominique Boeuf | David Smaga | Ecurie Chalhoub | 1:34.60 | ||||
| 2004 | Ryono | 5 | Tony Castanheira | Peter Lautner | Hildegard Focke | 1:39.60 | ||||
| 2005 | Valixir | 4 | Christophe Soumillon | André Fabre | Aga Khan IV | 1:35.70 | ||||
| 2006 | Librettist | 4 | Frankie Dettori | Saeed bin Suroor | Godolphin | 1:36.00 | ||||
| 2007 | Stormy River | 4 | Thierry Thulliez | Nicolas Clément | Ecurie Mister Ess A S | 1:33.90 | ||||
| 2008 | Racinger | 5 | Davy Bonilla | Freddy Head | Hamdan Al Maktoum | 1:35.70 | ||||
| 2009 | Alnadana | 4 | Christophe Soumillon | Alain de Royer-Dupré | Aga Khan IV | 1:38.70 | ||||
| 2010 | Fuisse | 4 | Stéphane Pasquier | Criquette Head-Maarek | Haras du Quesnay | 1:35.30 | ||||
| 2011 | Vagabond Shoes | 4 | Christophe Soumillon | Yan Durepaire | Javier Martinez Salmean | 1:39.50 | ||||
| 2012 | Tin Horse | 4 | Thierry Jarnet | Didier Guillemin | Marquesa de Moratalla | 1:35.45 | ||||
| 2013 | Intello | 3 | Olivier Peslier | André Fabre | Wertheimer et Frère | 1:34.00 | ||||
| 2014 | Graphic | 5 | Frankie Dettori | William Haggas | Royal Ascot Racing Club | 1:38.10 | ||||
| 2015 | Fractional | 6 | Mickael Barzalona | André Fabre | Godolphin | 1:38.40 | ||||
| 2016 | Vadamos | 5 | Vincent Cheminaud | André Fabre | Haras de Saint Pair | 1:35.10 | ||||
| 2017 | Taareef | 4 | Ioritz Mendizabal | Jean-Claude Rouget | Hamdan Al Maktoum | 1:34.86 | ||||
| 2018 | Geniale | 4 | Yutaka Take | Mikio Matsunaga | Kieffers Co Ltd | 1:37.62 | ||||
| 2019 | Impulsif | 4 | Mickael Barzalona | André Fabre | Godolphin | 1:38.80 | ||||
| 2020 | Not run due to the COVID-19 pandemic. | |||||||||
| 2021 | 4 | Mickael Barzalona | André Fabre | Godolphin | 1:40.02 | |||||
| 2022 | Wally | 5 | Cristian Demuro | Jean-Claude Rouget | Ecurie Jean-Pierre Barjon | 1:39.37 | ||||
| 2023 | Fast Raaj | 5 | Alexis Pouchin | Yann Barberot | Alain Jathiere, Ecurie Du Parc Monceau Et Al | 1:36.81 | ||||
The 2019 running moved to Deauville during unsafely track.
The 2021 running moved to Chantilly due to the closure of Maisons-Laffitte.
The 2022 running moved to Chantilly due to the closure of Maisons-Laffitte
The 2023 running moved to Chantilly due to the closure of Maisons-Laffitte.
----