The 2007 New South Wales state election was held on Saturday, 24 March 2007. The entire Legislative Assembly and half of the Legislative Council was up for election. The Labor Party led by Morris Iemma won a fourth four-year term against the Liberal-National coalition led by Peter Debnam.

Morris Iemma is a former Australian politician who was the 40th Premier of New South Wales. He served from 3 August 2005 to 5 September 2008. From Sydney, Iemma attended the University of Sydney and the University of Technology, Sydney. A member of the Labor Party, he was first elected to the Parliament of New South Wales at the 1991 state election, having previously worked as a trade union official. From 1999, Iemma was a minister in the third and fourth ministries led by Bob Carr. He replaced Carr as premier and Leader of the New South Wales Labor Party in 2005, following Carr's resignation. Iemma led Labor to victory at the 2007 state election, albeit with a slightly reduced majority. He resigned as premier in 2008, after losing the support of caucus, and left parliament shortly after, triggering a by-election. He was replaced as premier by Nathan Rees.