The Canada Life Assurance Company (French: La Compagnie d'Assurance du Canada sur la Vie), commonly known as Canada Life (Canada-Vie), is a Canadian insurance and financial services company with its headquarters in Winnipeg, Manitoba. The current company is the result of the 2020 amalgamation of The Great-West Life Assurance Company, London Life Insurance Company and The Canada Life Assurance Company, along with their holding companies (London Insurance Group Inc. and Canada Life Financial Corporation). The company is a wholly owned subsidiary of Great-West Lifeco.

The Great-West Life Assurance Company (French: La Great-West, Compagnie d'Assurance-vie) provided life, disability, and health insurance; benefit and retirement plans; and investment advice. It was active in both the United States and Canada.

Great-West Life was founded in Winnipeg in 1891 by Jeffry Hall Brock, a local insurance agent. The company was incorporated on August 28, 1891, with local residents such as James Ashdown on its board. In 1942, it was the first Canadian company "to enter the accident and health insurance business." In 1960, the company moved to Osborne Street, where it had constructed a new building on the site of the old Osborne Stadium. In 1983, the company expanded into a building on the corner of Broadway and Osborne.

In 1979, US and Canadian operations were separated due mostly to rapid US growth. In 1969, Great-West was purchased by the Power Corporation, which made it into a wholly owned subsidiary. In 1982, Great-West began offering a universal life policy which differed from those offered by competitors. Two years later, in 1984, the Power Financial Corporation was created as a holding company for Great-West and its numerous businesses.

Great-West Life Realty (GWL Realty) is the Toronto-based property and asset management arm of Great-West Life, established in 1993.

The London Life Insurance Company (or London Life) merged with Great-West Life in 1997, then joined the original Canada Life in 2003. London Life was a part of Great-West Lifeco subsidiary, Great-West Life Assurance Company. London Life was founded in London, Ontario, in 1874, and remains headquartered there. In 2009, London Life ranked 14th among Canada's largest private companies. The company reportedly had assets under management of $40 billion (Canadian funds) as at December 31, 2004, and 1.9 million participating life insurance policies.

London Life was best known for its widely advertised Freedom 55 program launched in 1984, which evokes saving money to an extent that would allow one to retire at age 55 instead of age 65, the standard retirement age under the Canada Pension Plan. The tagline was later repurposed for the company's sales organization, which was rebranded Freedom 55 Financial in 2000.

In 2019, London Life merged with its sister companies, Great-West Life Assurance Company and Canada Life Financial, under the banner of Canada Life. The Freedom 55 Financial brand was also retired at this point.