The 2007 Prix de l'Arc de Triomphe was a horse race held at Longchamp on Sunday 7 October 2007. It was the 86th running of the Prix de l'Arc de Triomphe.
The winner was Dylan Thomas, a four-year-old colt trained in Ireland by Aidan O'Brien. The winning jockey was Kieren Fallon.
There was a thirty-minute stewards' inquiry after the race, but the original placings were left unchanged.
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Further details of the winner, Dylan Thomas.