The Biathlon World Cup is a top-level biathlon season-long competition series. It has been held since the winter seasons of 1977–78 for men and 1982–83 for women. The women's seasons until 1986–87 season were called the European Cup, although participation was not restricted to Europeans.

The biathlon is a winter sport that combines cross-country skiing and rifle shooting. It is treated as a race, with contestants skiing through a cross-country trail whose distance is divided into shooting rounds. The shooting rounds are not timed per se, but depending on the competition, missed shots result in extra distance or time being added to the contestant's total.