The Canada Act 1982 (1982 c. 11; French: Loi de 1982 sur le Canada) is an act of the Parliament of the United Kingdom and one of the enactments which make up the Constitution of Canada. It was enacted at the request of the Senate and House of Commons of Canada to patriate Canada's Constitution, ending the power of the British Parliament to amend the Constitution. The act also formally ended the "request and consent" provisions of the Statute of Westminster 1931 in relation to Canada, whereby the British parliament had a general power to pass laws extending to Canada at its own request.

Annexed as Schedule B to the act is the text of the Constitution Act, 1982, in both of Canada's official languages (i.e. English and French). Because of the requirements of official bilingualism, the body of the Canada Act itself is also set out in French in Schedule A to the act, which is declared by s. 3 to have "the same authority in Canada as the English version thereof".