| Bellechasse | |
| Settlement Type: | Regional county municipality |
| Coordinates: | 46.7333°N -113°W |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Type2: | Region |
| Subdivision Name2: | Chaudière-Appalaches |
| Established Title: | Effective |
| Established Date: | January 1, 1982 |
| Seat Type: | County seat |
| Seat: | Saint-Lazare-de-Bellechasse |
| Government Type: | Prefecture |
| Leader Title: | Prefect |
| Leader Name: | Hervé Blais |
| Area Total Km2: | 1,781.50 |
| Area Land Km2: | 1,751.06 |
| Population Total: | 37,233 |
| Population As Of: | 2016 |
| Population Density Km2: | 21.3 |
| Population Blank1 Title: | Change 2011-2016 |
| Population Blank1: | 5.4% |
| Population Blank2 Title: | Dwellings |
| Population Blank2: | 17,740 |
| Timezone: | EST |
| Utc Offset: | −5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | −4 |
| Postal Code Type: | Postal code(s) |
| Area Codes: | 418 and 581 |
Bellechasse Regional County Municipality is a regional county municipality in the Chaudière-Appalaches region of Quebec. The county seat is Saint-Lazare-de-Bellechasse.
Saint-Lazare was chosen as the county seat because of its central location. Other municipalities, such as Saint-Anselme, Sainte-Claire, and Saint-Damien had wanted to be the county seat because of their larger population. The region belongs to the Lévis—Bellechasse federal electoral district.
There are 20 subdivisions within the RCM:
(Statistics Canada, 2016)
Highways and numbered routes that run through the municipality, including external routes that start or finish at the county border:[1]