| Notre-Dame-du-Rosaire | |
| Pushpin Map: | Canada Southern Quebec |
| Pushpin Map Caption: | Location in province of Quebec. |
| Coordinates: | 46.8333°N -94°W |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Type2: | Region |
| Subdivision Name2: | Chaudière-Appalaches |
| Subdivision Type3: | RCM |
| Subdivision Name3: | Montmagny |
| Established Title1: | Constituted |
| Established Date1: | December 18, 1894 |
| Leader Title: | Mayor |
| Leader Name: | André Boulet (Interim) |
| Leader Title1: | Federal riding |
| Leader Name1: | Montmagny—L'Islet— Kamouraska—Rivière- du-Loup |
| Leader Title2: | Prov. riding |
| Leader Name2: | Côte-du-Sud |
| Area Total Km2: | 163.10 |
| Area Land Km2: | 158.00 |
| Population Total: | 384 |
| Population As Of: | 2011 |
| Population Density Km2: | 2.4 |
| Population Blank1 Title: | Pop 2006-2011 |
| Population Blank1: | 2.5% |
| Population Blank2 Title: | Dwellings |
| Population Blank2: | 224 |
| Timezone: | EST |
| Utc Offset: | −5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | −4 |
| Postal Code Type: | Postal code(s) |
| Postal Code: | G0R 2H0 |
| Area Code: | 418 and 581 |
| Blank Name: | Highways |
Notre-Dame-du-Rosaire is a municipality of about 400 people in Montmagny Regional County Municipality within the Chaudière-Appalaches region of Quebec. It is located on the south shore of the Saint Lawrence River, 20 km south of Montmagny on Route 283.