| Saint-Arsène | |
| Settlement Type: | Parish municipality |
| Pushpin Map: | Canada Eastern Quebec |
| Pushpin Map Caption: | Location in eastern Quebec |
| Coordinates: | 47.9167°N -95°W |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Type2: | Region |
| Subdivision Name2: | Bas-Saint-Laurent |
| Subdivision Type3: | RCM |
| Subdivision Name3: | Rivière-du-Loup |
| Established Title1: | Constituted |
| Established Date1: | July 1, 1855 |
| Leader Title: | Mayor |
| Leader Name: | Mario Lebel |
| Leader Title1: | |
| Leader Name1: | Montmagny—L'Islet—Kamouraska—Rivière-du-Loup |
| Leader Title2: | Prov. riding |
| Leader Name2: | Rivière-du-Loup-Témiscouata |
| Area Total Km2: | 70.40 |
| Area Land Km2: | 70.81 |
| Area Note: | There is an apparent contradiction between two authoritative sources |
| Population Total: | 1245 |
| Population As Of: | 2021 |
| Population Density Km2: | 17.6 |
| Population Blank1 Title: | Pop 2016-2021 |
| Population Blank1: | 1.2% |
| Population Blank2 Title: | Dwellings |
| Population Blank2: | 479 |
| Timezone: | EST |
| Utc Offset: | −5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | −4 |
| Postal Code Type: | Postal code(s) |
| Postal Code: | G0L 2K0 |
| Area Code: | 418 and 581 |
| Blank Name: | Highways |
| Blank Info: | |
Saint-Arsène (pronounced as /fr/) is a parish municipality in Quebec, Canada.
In the 2021 Census of Population conducted by Statistics Canada, Saint-Arsène had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of 70.81km2, it had a population density of in 2021.[1]