Michael Kenneth Moore ONZ AO PC (28 January 1949 – 2 February 2020) was a New Zealand politician, union organiser, and author. In the Fourth Labour Government he served in several portfolios including minister of Foreign Affairs, and was the 34th prime minister of New Zealand for 59 days before the 1990 general election elected a new parliament. Following Labour's defeat in that election, Moore served as Leader of the Opposition until the 1993 election, after which Helen Clark successfully challenged him for the Labour Party leadership.