Trail de la Citadelle is an October trail-running event in Cambrai, northern France, organised by Cambrai Triathlon. Now in its twelfth edition, it offers several named courses: Camberlot 1, Camberlot 2, Poudrière, Nimègue, Vauban, and Charles Quint. Entry fees are low and vary by distance and registration date.
The event's logistics are based at the Palais des Grottes in Cambrai, where bibs are collected before race day. Registration is managed through Adeorun. Participants require a current FFA licence or the French athletics federation’s health-prevention document. The first 500 pre-registered runners on the Poudrière, Nimègue, and Vauban courses receive a souvenir jersey. Trophies and gift baskets are awarded in broad categories like Senior and Master.