力拓集团（Rio Tinto Group，ASX: RIO, LSE：RIO，NYSE：RIO）是一间成立于1873年的跨国性矿产及资源集团，该公司同时还兼营煤、铁、铜、黄金、钻石、铝、能源等业务。2006年该集团税前营利大约为102亿美元，生意额则达254亿美元。

2007年初计划收购加拿大铝业公司(Alcan)，作价381亿美元，相当于每股101美元，加拿大铝业公司的董事局基本上同意，但仍需股东及监管机构的同意。2007年8月27日，美国反垄断当局同意他们收购加拿大铝业(Alcan)。 新公司的总部将设立于蒙特利尔，力拓集团行政总裁伊凡斯（Dick Evans）将作为新部门－「力拓－加铝」的领导。至此，该公司成为世界最大的铝业公司。

Rio Tinto Group is a British-Australian multinational metals and mining corporation with headquarters in London, United Kingdom and a management office in Melbourne, Australia. The company was founded in 1873, when a multinational consortium of investors purchased a mine complex on the Rio Tinto river, in Huelva, Spain, from the Spanish government. Since then, the company has grown through a long series of mergers and acquisitions to place itself among the world leaders in the production of many commodities, including aluminium, iron ore, copper, uranium, coal, and diamonds. Although primarily focused on extraction of minerals, Rio Tinto also has significant operations in refining, particularly for refining bauxite and iron ore. The company has operations on six continents but is mainly concentrated in Australia and Canada, and owns its mining operations through a complex web of wholly and partly owned subsidiaries. Its head office in the United Kingdom is in the City of Westminster, London, while its Australian head office is in the City of Melbourne.