| Official Name: | Southern Harbour |
| Settlement Type: | Town |
| Pushpin Map: | Newfoundland |
| Pushpin Label Position: | left |
| Population As Of: | 2021 |
| Population Total: | 313 |
| Utc Offset: | -3:30 |
| Utc Offset Dst: | -2:30 |
| Coordinates: | 47.7222°N -53.9533°W |
| Postal Code: | A0B 3H0 |
Southern Harbour is a town in the province of Newfoundland and Labrador, Canada. The town had a population of 369 in the Canada 2016 Census.
In the 2021 Census of Population conducted by Statistics Canada, Southern Harbour had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of 5.39km2, it had a population density of in 2021.[1]