| Lac-Boisbouscache | |
| Settlement Type: | Unorganized territory |
| Pushpin Map: | Canada Eastern Quebec |
| Pushpin Map Caption: | Location in eastern Quebec |
| Coordinates: | 48.1333°N -118°W |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Type2: | Region |
| Subdivision Name2: | Bas-Saint-Laurent |
| Subdivision Type3: | RCM |
| Subdivision Name3: | Les Basques |
| 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: | 101.80 |
| Area Land Km2: | 99.39 |
| Population Total: | 0 |
| Population As Of: | 2011 |
| Population Density Km2: | 0 |
| Population Blank1 Title: | Pop 2006-2011 |
| Population Blank1: | 0.0% |
| Population Blank2 Title: | Dwellings |
| Population Blank2: | 17 |
| Timezone: | EST |
| Utc Offset: | −5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | −4 |
| Blank Name: | Highways |
| Blank Info: | No major routes |
Lac-Boisbouscache is an unorganized territory in the Canadian province of Quebec, located in the Les Basques Regional County Municipality.