| Lac-Blanc | |
| Pushpin Map: | Canada Central Quebec |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location in central Quebec. |
| Coordinates: | 47.2833°N -73°W |
| Subdivision Type: | Country |
| Subdivision Name: | Canada |
| Subdivision Name1: | Quebec |
| Established Title1: | Constituted |
| Established Date1: | January 1, 1986 |
| Government Footnotes: | [1] |
| Area Footnotes: | [2] |
| Area Total Km2: | 567.80 |
| Area Land Km2: | 555.47 |
| Population Total: | 0 |
| Population As Of: | 2011 |
| Population Density Km2: | 0.0 |
| Population Blank1 Title: | Pop 2006–2011 |
| Population Blank1: | 100.0% |
| Population Blank2 Title: | Dwellings |
| Population Blank2: | 214 |
| Utc Offset: | −5 |
| Utc Offset Dst: | −4 |
| Blank Name: | Highways |
| Blank Info: | No major routes |
Lac-Blanc (pronounced as /fr/) is an unorganized territory in the Capitale-Nationale region of Quebec, Canada, in the north-east of the Portneuf Regional County Municipality. This unorganized territory covers 567.80 km ². The main lake, designated "White Lake" has the shape of a fine, oriented north–south. The discharge of this lake is on the southern tip, where it flows into the White River.
Private dwellings occupied by usual residents in 2011: 0 (total dwellings: 214)
All of the following toponyms are related and are registered at the Bank of places names of Commission de toponymie du Québec:[4]