| Official Name: | St. Mary's |
| Settlement Type: | Town |
| Pushpin Map: | Newfoundland#Canada |
| Pushpin Label Position: | left |
| Subdivision Type: | Country |
| Subdivision Name: | Canada |
| Subdivision Name3: | 1 |
| Established Title: | Settled |
| Established Date: | 1600s |
| Established Title2: | Incorporated (town) |
| Established Date2: | 1966 |
| Area Land Km2: | 37.05 |
| Population As Of: | 2021 |
| Population Total: | 313 |
| Population Density Km2: | 9.4 |
| Utc Offset: | -03:30 |
| Timezone Dst: | NDT |
| Utc Offset Dst: | 0-2:30 |
| Coordinates: | 46.9136°N -53.5317°W |
St. Mary's is a town in the Canadian province of Newfoundland and Labrador. The town had a population of 313 in the Canada 2021 Census.
Most of the employment in the community is from the local seafood processing plant, operating in summer months.[1] Most plant workers receive E.I. benefits during the off season. There was briefly a fish sauce plant that used the byproduct of the main processing plant.[2] The town has a Catholic church, a bed & breakfast[3] (which provides the only overnight accommodations in the area), a small pub, and 2 gas stations which also serve as convenience stores.
Point La Haye Beach is a popular picnic location in summer, and is located very near an automated lighthouse and long, natural barachois.Other than this, there are little tourist attractions in the area, and most tourists are travellers of the Irish Loop Drive,[4] passing through the town.
St. Mary's exhibits an oceanic climate (Köppen Cfb) or a humid continental climate (Dfb) depending on the isotherm used.
In the 2021 Census of Population conducted by Statistics Canada, St. Mary's had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of 36.41km2, it had a population density of in 2021.[5]