| Official Name: | Lac-Fouillac |
| Flag Size: | 120x100px |
| Coordinates: | 48.0333°N -96°W |
| Subdivision Type: | Country |
| Subdivision Name: | Canada |
| Subdivision Type2: | Region |
| Subdivision Type3: | Regional county |
| Established Title: | Formed |
| Established Date: | January 1, 1986 |
| Established Title2: | Dissolved |
| Established Date2: | August 29, 2009 |
| Government Type: | Unorganized territory |
| Area Footnotes: | [1] [2] |
| Area Total Km2: | 263.00 |
| Area Land Km2: | 240.70 |
| Population Total: | 91 |
| Population As Of: | 2006 |
| Population Density Km2: | 0.4 |
| Utc Offset: | −05:00 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | −04:00 |
Lac-Fouillac is a former unorganized territory in the Abitibi-Témiscamingue region of Quebec, Canada, now part the Municipality of Rivière-Héva in the La Vallée-de-l'Or Regional County Municipality.
In July 2007, the residents of Lac-Fouillac overwhelmingly rejected the amalgamation of their territory with the City of Malartic. 96% of voters voted against annexation in a referendum. But two years later on August 29, 2009, Lac-Fouillac, together with the western portion of the Unorganized Territory of Lac-Granet, was merged into the Municipality of Rivière-Héva.[3]
Population:[4]