World Triathlon Cup

The World Triathlon Cup is an annual series of triathlon races staged around the world, organised by World Triathlon, the IOC-recognised world governing body of the sport. The events are operated under the standard rules of World Triathlon which, in contrast to the Ironman triathlon formats which are not organised by world Triathlon, allow drafting in the cycle leg, and are held over both 'standard' and 'sprint' (half standard) distances.

The event has existed in two distinct eras. Between 1991 and 2008, the World Cup was the highest level of season-long draft-legal professional triathlon racing, although a separate World Championship event crowned the formal World Champions of the sport. Following the creation of the World Triathlon Championship Series for 2008, however, the World Cup circuit became the second tier global circuit, below the Championship Series but above the Continental Cups circuit.

The event continues to exist as the second tier in World Triathlon-controlled, draft legal racing, alongside start-up private events such as Super League Triathlon, now known as supertri and the T100 Triathlon format backed by the Professional Triathletes Organisation.