John Mercer Reid

John Mercer Reid, PC (born February 8, 1937) is the former Information Commissioner of Canada, former president of the Canadian Nuclear Association, and a former politician.

John Reid was first elected to the Canadian House of Commons in the 1965 election as a Liberal Member of Parliament (MP). In the 1968 federal election, he was returned as Canada's sole Liberal-Labour MP, although he remained in the Liberal caucus. The Liberal-Labour label was a reflection of a longstanding tradition in the riding of Kenora—Rainy River aimed at deflecting votes from the New Democratic Party, rather than as a mark of political dissent.

After the 1972 election, Reid was redesignated as a Liberal MP and became parliamentary secretary to the President of the Queen's Privy Council for Canada, and worked on issues such as improving the access of MPs to government records.

In 1978, Reid joined the Cabinet of Prime Minister Pierre Trudeau as Minister of State for federal-provincial relations, and remained in that position until the defeat of the Liberal government in the 1979 election. Reid remained an MP until his own defeat in the 1984 election.