| Saint-Adalbert | |
| Settlement Type: | Municipality |
| Pushpin Map: | Canada Southern Quebec |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location in southern Quebec |
| Coordinates: | 46.8667°N -123°W |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Type2: | Region |
| Subdivision Name2: | Chaudière-Appalaches |
| Subdivision Type3: | RCM |
| Subdivision Name3: | L'Islet |
| Established Title1: | Constituted |
| Established Date1: | August 26, 1911 |
| Leader Title: | Mayor |
| Leader Name: | René Laverdière |
| 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: | 217.90 |
| Area Land Km2: | 216.16 |
| Population Total: | 460 |
| Population As Of: | 2021 |
| Population Density Km2: | 2.1 |
| Population Blank1 Title: | Pop 2016-2021 |
| Population Blank1: | 9.8% |
| Population Blank2 Title: | Dwellings |
| Population Blank2: | 251 |
| Timezone: | EST |
| Utc Offset: | −5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | −4 |
| Postal Code Type: | Postal code(s) |
| Postal Code: | G0R 2M0 |
| Area Code: | 418 and 581 |
| Blank Name: | Highways |
| Blank Info: | |
Saint-Adalbert is a municipality in Quebec, Canada, on the Canada–United States border.