The 1999 New Zealand general election was held on 27 November 1999 to determine the composition of the 46th New Zealand Parliament. The governing National Party, led by Prime Minister Jenny Shipley, was defeated, being replaced by a coalition of Helen Clark's Labour Party and the smaller Alliance. This marked an end to nine years of the Fourth National Government, and the beginning of the Fifth Labour Government which would govern for nine years in turn, until its loss to the National Party in the 2008 general election. It was the first New Zealand election where both major parties had female leaders.

The 46th New Zealand Parliament was a term of the New Zealand Parliament. Its composition was determined by the 1999 election, and it sat until the 2002 election.