| Honorific-Prefix: | The Honourable |
| Diane Bellemare | |
| Office: | Canadian Senator from Quebec (Alma) |
| Term Start: | September 6, 2012 |
| Nominator: | Stephen Harper |
| Appointed: | David Johnston |
| Office1: | Deputy Representative of the Government in the Senate |
| Leader1: | Peter Harder |
| Term Start1: | March 23, 2016 |
| Term End1: | November 14, 2019 |
| Predecessor1: | Position established |
| Successor1: | Raymonde Gagné |
| Birth Date: | 13 October 1949 |
| Party: | Progressive Senate Group (2021-present), Independent Senators Group (2019-2021), Non-affiliated (2016–2019), Conservative Party of Canada (2012–2016) |
| Otherparty: | Action démocratique du Québec (2003–2008) |
Diane Bellemare (born October 13, 1949) is a Canadian economist and parliamentarian from Quebec, who was appointed to the Senate of Canada on September 6, 2012.[1]
From September 2003 to April 2007, she held executive jobs with the Conseil du patronat du Québec, including Senior Vice-President and Chief Economist from April 2006 to April 2007.[2]
Bellemare was appointed to the Senate by Governor General David Johnston on the advice of Prime Minister Stephen Harper and sat as a member of the Conservative Party of Canada caucus until March 2016 when she resigned to sit as an Independent. In May 2016, she was appointed Deputy Government Representative to the Senate by Government Representative Peter Harder.[3]
On November 14, 2019, on the same day that the Senate Liberal Caucus dissolved and was succeeded by the Progressive Senate Group, Senator Bellemare left her position and joined the ISG.[4] [5]
On September 17, 2021, Senator Bellemare joined the Progressive Senate Group.[6]