Cross de Tergnier is a cross-country race held in Tergnier, Aisne department, northern France, utilizing Rue de l'Yser as its base. Organized by ESC Tergnier Athlétisme, it typically marks the beginning of the local cross-country season, serving as a significant early test for many athletes following their summer and early autumn training.
The event features shorter off-road courses, with listed distances around 3.5 km and 7.7 km, though some race calendars indicate 5 km and 7 km. Its regional Label Bronze designation attracts a strong local participation, including club runners assessing their fitness and individuals using the race to commence their season.