| Saint-Léandre | |
| Flag Size: | 120x80px |
| Pushpin Map: | Canada Eastern Quebec |
| Pushpin Map Caption: | Location in eastern Quebec |
| Coordinates: | 48.7333°N -103°W |
| Subdivision Type: | Country |
| Established Title: | Settled |
| Established Date: | ca. 1900 |
| Established Title1: | Constituted |
| Established Date1: | March 30, 1912 |
| Leader Title: | Mayor |
| Leader Name: | Steve Castonguay |
| Area Total Km2: | 105.76 |
| Area Land Km2: | 104.72 |
| Population Total: | 375 |
| Population Density Km2: | 3.6 |
| Population Blank1 Title: | Pop 2016-2021 |
| Population Blank1: | 6.3% |
| Population Blank2 Title: | Dwellings |
| Population Blank2: | 222 |
| Utc Offset: | −5 |
| Utc Offset Dst: | −4 |
| Blank Name: | Highways |
| Blank Info: | No major routes |
Saint-Léandre is a parish municipality in the Canadian province of Quebec, located in La Matanie Regional County Municipality.
The Parish of Saint-Léandre was founded in 1900, named after the first settler of the place, Léandre Bernier. In 1902, its post office opened.
On March 30, 1912, the Parish Municipality of Saint-Léandre was formed when it ceded from the Parish Municipality of Saint-Ulric.
In the 2021 Census of Population conducted by Statistics Canada, Saint-Léandre had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of 104.72km2, it had a population density of in 2021.
List of former mayors: