Ulster Rugby is one of the four professional provincial rugby union teams from the island of Ireland. They compete in the Irish regional pool of the United Rugby Championship and in the European Rugby Champions Cup, each of which they have won once. Ulster were the first Irish team and the first team outside England and France to win the European Cup in 1999.

The European Rugby Champions Cup is an annual rugby union tournament organised by European Professional Club Rugby (EPCR). It is the top-tier competition for clubs who compete in a predominantly European league. Clubs qualify for the Champions Cup via their final positions in their respective national/regional leagues or via winning the second-tier Challenge Cup; those that do not qualify are instead eligible to compete in the second-tier Challenge Cup.