The 2005 Churchill Cup was held between 14 June and 21 June 2005 in Edmonton, Canada. It was the third edition of the Churchill Cup competition. three of the four rugby union teams taking part in the 2004 men's competition, Canada, England A, the USA, returned to compete, while Argentina A replaced the Māori.
There was no women's event, although a similar event, the 2005 Canada Cup did take place.
