| Honorific-Prefix: | The Honourable |
| Mona Fortier | |
| Birth Date: | 26 August 1972[1] [2] [3] |
| Birth Place: | Ottawa, Ontario, Canada |
| Party: | Liberal |
| Residence: | Beacon Hill South,[4] Ottawa[5] |
| Office: | President of the Treasury Board |
| Term Start: | October 26, 2021 |
| Term End: | July 26, 2023 |
| Primeminister: | Justin Trudeau |
| Predecessor: | Jean-Yves Duclos |
| Successor: | Anita Anand |
| Office1: | Minister of Middle Class Prosperity Associate Minister of Finance |
| Term Start1: | November 20, 2019 |
| Term End1: | October 26, 2021 |
| Primeminister1: | Justin Trudeau |
| Predecessor1: | Position established |
| Successor1: | Randy Boissonault (Associate Minister of Finance) |
| Parliament2: | Canadian |
| Riding2: | Ottawa—Vanier |
| Term Start2: | April 3, 2017 |
| Predecessor2: | Mauril Bélanger |
| Alma Mater: | University of Ottawa |
| Children: | 3 |
Mona N. Fortier[4] (born August 26, 1972) is a Canadian politician who previously served as the President of the Treasury Board from 2021 to 2023. A member of the Liberal Party, Fortier has represented the electoral district of Ottawa—Vanier since winning the 3 April 2017 by-election. She previously served as the associate minister of finance and minister of middle class prosperity. Prior to her election, Fortier worked as Chief Director of Communications and Market Development for La Cité Collégiale in Ottawa.[6]