| Official Name: | San Gregorio |
| Settlement Type: | Town and Commune |
| Flag Size: | 150px |
| Flag Alt: | Flag |
| Shield Alt: | Coat of arms |
| Map Alt: | Location of the San Gregorio commune in Magallanes Region |
| Pushpin Map Narrow: | yes |
| Pushpin Map: | Chile |
| Pushpin Label Position: | bottom |
| Pushpin Map Alt: | Location in Chile |
| Pushpin Map Caption: | Location in Chile |
| Coordinates: | -52.3156°N -69.6881°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Chile |
| Subdivision Type1: | Region |
| Subdivision Type2: | Province |
| Subdivision Name2: | Magallanes |
| Government Type: | Municipality |
| Government Footnotes: | [1] [2] |
| Leader Party: | Ind |
| Leader Title: | Alcalde |
| Leader Name: | Edgar Cárcamo Alderete |
| Unit Pref: | Metric |
| Area Footnotes: | [3] |
| Area Total Km2: | 6883.7 |
| Elevation M: | 51 |
| Population Total: | 384 |
| Population As Of: | 2012 Census |
| Population Density Km2: | auto |
| Population Blank1 Title: | Urban |
| Population Blank1: | 0 |
| Population Blank2 Title: | Rural |
| Population Blank2: | 1158 |
| Demographics Type1: | Sex |
| Demographics1 Title1: | Men |
| Demographics1 Info1: | 886 |
| Demographics1 Title2: | Women |
| Demographics1 Info2: | 272 |
| Timezone: | CLT[4] |
| Utc Offset: | -4 |
| Timezone Dst: | CLST[5] |
| Utc Offset Dst: | -3 |
| Area Code: | 56 + 61 |
San Gregorio is a commune in the far south of Chile. It is part of Magallanes Region and Province, and is administered by the municipality of the same name located in Punta Delgada, the principal town in the commune (the coordinates are those of Punta Delgada).
The comuna is on the north shore of the Strait of Magellan; between the Strait, to the south, and the border with Argentina, to the north. At the Primera Angostura, south of the town of Punta Delgada, there is a ferry crossing to Primavera commune on Tierra del Fuego Island. The good wind resource attracted a wind power project, scheduled for 2025.[6]
In the settlement of Estancia San Gregorio (-52.5669°N -70.07°W), some 40km (30miles) southwest of Punta Delgada, there is an estancia, and several imposing buildings dating from 1882.
Nearby are wrecks of two 19th-century cargo ships.[7] was a sailing tea clipper, built in London in 1869 and beached at San Gregorio in 1896.[8] Amadeo was a steamship, built in Liverpool in 1884 and beached at San Gregorio in 1932.[9]
According to the 2002 census of the National Statistics Institute, San Gregorio spans an area of 6883.7sqkm and has 1,158 inhabitants (886 men and 272 women), making the commune an entirely rural area. The population fell by 29.5% (485 persons) between the 1992 and 2002 censuses.[3]
The population is mostly descended from Croatian, Spanish and other Europeans.[10]
As a comuna, San Gregorio is a third-level administrative division of Chile administered by a municipal council, headed by an alcalde who is directly elected every four years. The 2012–2016 alcalde is Edgar Cárcamo Alderete.[1] [2]
Within the electoral divisions of Chile, San Gregorio is represented in the Chamber of Deputies by Juan Morano (PDC) and Gabriel Boric (Ind.) as part of the 60th electoral district, which includes the entire Magallanes y la Antártica Chilena Region. The commune is represented in the Senate by Carlos Bianchi Chelech (Ind.) and Carolina Goic (PDC) as part of the 19th senatorial constituency (Magallanes y la Antártica Chilena Region).