| Percentage1: | 59.20% |
| Posttitle: | Elected |
| Previous Year: | Mar. 2007 |
| After Election: | Pauline Marois |
| Country: | Quebec |
| Swing1: | 21.53pp |
| Election Name: | 2007 Charlevoix provincial by-election |
| Type: | Parliamentary |
| Ongoing: | no |
| Party Colour: | no |
| Party Name: | no |
| Previous Election: | 2007 Quebec general election |
| Map Size: | 200px |
| Seats For Election: | Riding of Charlevoix |
| Popular Vote1: | 11,400 |
| Candidate1: | Pauline Marois |
| Next Year: | 2008 |
| Swing2: | 6.22pp |
| Next Election: | 2008 Quebec general election |
| Before Election: | Rosaire Bertrand |
| Candidate2: | Conrad Harvey |
| Popular Vote2: | 7,125 |
| Percentage2: | 37.00% |
A provincial by-election was held in Quebec on 24 September 2007 to fill the vacancy in the National Assembly riding of Charlevoix.
The by-election was caused by the decision of PQ MNA Rosaire Bertrand to stand down to offer the new Parti Québécois leader Pauline Marois a way to become an MNA. The Liberal Party of Quebec stated that it would not stand a candidate against Marois so that all three party leaders would be represented in the National Assembly, but the Action démocratique du Québec did run a candidate. The ADQ accused the Liberals and the PQ of a lack of democratic principles, claiming that it was not necessary for a third-party leader to be represented in the National Assembly.[1] [2]
|-|Independent (F4J)|Daniel Laforest|align="right"|64|align="right"|0.33|align="right"|+0.33|-|Parti république|François Robert Lemire|align="right"|52|align="right"|0.27|align="right"|+0.27|}