Trail des Fous Romains is a late-February trail race held in Vaison-la-Romaine, located in the Vaucluse region of Provence-Alpes-Côte d'Azur. Participants can select from two loop courses: a 15 km or a 25 km option, with the 25 km being the more frequently chosen distance.
The courses combine natural terrain, woodland paths, and sections within the town, distinguishing it from a pure mountain race or a road race merely labeled as trail. The name references Vaison-la-Romaine's Roman history, and the "Fous Romains" theme provides the event with a distinct local character, setting it apart from other distances on the Provence trail running schedule.