| Saint-Louis-de-Gonzague | |
| Settlement Type: | Municipality |
| Pushpin Map: | Canada Southern Quebec |
| Pushpin Map Caption: | Location in southern Quebec. |
| Coordinates: | 46.2667°N -90°W |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Type2: | Region |
| Subdivision Name2: | Chaudière-Appalaches |
| Subdivision Type3: | RCM |
| Subdivision Name3: | Les Etchemins |
| Established Title1: | Constituted |
| Established Date1: | March 17, 1923 |
| Leader Title: | Mayor |
| Leader Name: | Suzanne C. Guenette |
| Leader Title1: | Federal riding |
| Leader Name1: | Lévis—Bellechasse |
| Leader Title2: | Prov. riding |
| Leader Name2: | Bellechasse |
| Area Total Km2: | 118.50 |
| Area Land Km2: | 118.02 |
| Population Total: | 374 |
| Population As Of: | 2016 |
| Population Density Km2: | 3.2 |
| Population Blank1 Title: | Pop 2011-2016 |
| Population Blank1: | 11.2% |
| Population Blank2 Title: | Dwellings |
| Population Blank2: | 232 |
| Timezone: | EST |
| Utc Offset: | −5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | −4 |
| Postal Code Type: | Postal code(s) |
| Postal Code: | G0R 2L0 |
| Area Code: | 418 and 581 |
| Blank Name: | Highways |
Saint-Louis-de-Gonzague is a municipality in the Les Etchemins Regional County Municipality in the Chaudière-Appalaches region of Quebec, Canada. Its population is 374 as of the Canada 2016 Census. It lies on the Canada–United States border.
The origin of the name of the municipality is subject to debate and three versions are possible. It seems that settlers would have liked to name their parish Saint-Louis, but it was refused due to possible confusion with Saint-Louis-de-Kamouraska (now part of Kamouraska, Quebec). Monsignor Elzéar-Alexandre Taschereau then suggested to name it Saint-Louis-de-Gonzague, following saint Aloysius Gonzaga.
Another version would be that Cardinal Louis-Nazaire Bégin would have wanted to honour his patron saint, Aloysius Gonzaga.
Lastly, it could also have been to honour Louis-Philippe Pelletier, member of the Legislative Assembly of Quebec for Dorchester.
The municipality's post office is named Ravignan, after French Jesuit Gustave Delacroix de Ravignan, who was a preacher at Notre-Dame de Paris.