The 2003 Ontario general election was held on October 2, 2003, to elect the 103 members of the 38th Legislative Assembly (Members of Provincial Parliament, or "MPPs") of the Province of Ontario, Canada.

The election was called on September 2 by Premier Ernie Eves in the wake of supporting polls for the governing Ontario Progressive Conservative Party in the days following the 2003 North American blackout. The election resulted in a majority government won by the Ontario Liberal Party, led by Dalton McGuinty.

2003 Ontario general election

Leadup to the campaign

In 1995, the Ontario Progressive Conservative Party under Mike Harris came from third place to upset the front-running Ontario Liberal Party under Lyn McLeod and the governing Ontario New Democratic Party under Bob Rae to form a majority government. Over the following two terms, the Harris government moved to cut personal income tax rates by 30%, closed almost 40 hospitals to increase efficiency, cut the Ministry of the Environment staff in half, and undertook massive reforms of the education system, including mandatory teacher testing, student testing in public education, and public tax credits for parents who sent their children to private schools.

2003 Ontario general election

In the 1999 provincial election, the Tories were able to ride a strong economy and a campaign aimed at depicting rookie Liberal leader Dalton McGuinty as "not up to the job" to another majority government. The Walkerton Tragedy, however, where a contaminated water supply led to the deaths of 7 people and illness of at least 2,300 were linked in part to government environment and regulatory cutbacks, and as a result the government's popularity was badly damaged. A movement to provide tax credits to parents with children in private schools also proved to be unpopular.

2003 Ontario general election

In October 2001, Harris announced his intention to resign, and the PC party called a leadership convention for 2002 to replace him. Five candidates emerged: former Finance Minister Ernie Eves who had retired earlier that year, current Finance Minister Jim Flaherty, Environment Minister Elizabeth Witmer, Health Minister Tony Clement and Labour Minister Chris Stockwell. The resulting leadership election was divisive in the PC Party, with Flaherty adopting a hard-right platform and attacking the front-running Eves as "a pale, pink imitation of Dalton McGuinty" and a "serial waffler". At one point, anti-abortion activists apparently supporting Flaherty distributed pamphlets attacking Tony Clement because his wife worked for hospitals that performed abortions. At the convention, Eves won on the second ballot after Elizabeth Witmer and Tony Clement both endorsed him.

Eves took office on April 15, 2002, and promptly re-aligned his government to the political centre. The party would negotiate a deal with striking government workers, dramatically cancel an IPO of Hydro One, the government's electricity transmission company, and defer planned tax breaks for corporations and private schools for a year. With polls showing the Conservatives moving from a 15-point deficit to a tie in public opinion with the Liberals, the media praising Eves' political reorientation of the government, and the opposition Liberals reeling from the seizure of some of their political turf, the time seemed ripe for a snap election call. Many political observers felt that Eves had the momentum to win an election at that time.

However, several factors likely convinced Eves to wait to call an election. First, in 1990, the Liberals had lost the election in part due to perceptions that they called the election early for purely partisan reasons. Since then, the shortest distance between elections had been four years less five days (Ontario has since moved to fixed date election dates). Second, the PC Party was exhausted and divided from a six-month leadership contest. Third, the move to the centre had created opposition in traditional Conservative support. Financial conservatives and businesses were angered over Eves' cancellation of the hydro IPO. Others felt betrayed that promised tax cuts had not been delivered, seemingly breaking the PCs' own Taxpayer Protection Act, while private school supporters were upset their promised tax credit had been delayed for a year.