The 2006 Churchill Cup was a rugby union competition played between the second teams of various top tier international rugby nations and the first teams of traditionally less prominent teams, such as Canada and the United States. The 2006 tournament began on June 3 and ended on June 17. The 2006 competition marked the fourth year of the Churchill Cup as well as its expansion from four to six teams. The Cup was contested by Canada, England Saxons, Ireland A, New Zealand Māori, Scotland A, and the United States. New Zealand Māori won the competition.