The IAAF World Cross Country Championships is an annual international running competition organized by the International Association of Athletics Federations (IAAF). It features various races, including senior and junior categories, where athletes compete on a cross-country course that varies in distance and terrain. First held in 1973, the championships attract top runners from around the world, showcasing both individual and team events. The competition is known for its challenging courses and is a key event in the athletics calendar, often serving as a platform for athletes to gain recognition and experience in long-distance running.