The 1915 Stanley Cup Finals was played from March 22–26, 1915. The Pacific Coast Hockey Association (PCHA) champion Vancouver Millionaires swept the National Hockey Association (NHA) champion Ottawa Senators three games to none in a best-of-five game series. The finals were played in Vancouver, with games one, three and five played under PCHA rules. The Millionaires became the first team from the PCHA to win the Cup. This was the second Stanley Cup championship series between the champions of the NHA and the PCHA and the first held in a PCHA rink.

The Vancouver Millionaires were a professional ice hockey team that competed in the Pacific Coast Hockey Association and the Western Canada Hockey League between 1911 and 1926. Based in Vancouver, British Columbia, they played in Denman Arena, the first artificial ice surface in Canada and the largest indoor ice rink in the world at the time it opened.