The ARAG ATP World Team Championship is the international team championship of the Association of Tennis Professionals (ATP). The tournament has been contested annually since 1978 and is considered to be second most prestigious men's team competition in tennis after the Davis Cup.

Every year, the eight nations whose top two male players have achieved the highest combined placings in the men's world rankings at the end of the previous year are invited to compete for the cup.

The competition is played on clay courts in Düsseldorf, Germany. The event is generally regarded as the sports highlight of the social scene in the Düsseldorf area. It attracts around 75,000 visitors every year and is televised to over 160 countries.