| Opasatika | |
| Official Name: | Township of Opasatika Canton d'Opasatika |
| Settlement Type: | Township (single-tier) |
| Pushpin Map: | Canada Ontario |
| Pushpin Mapsize: | 200 |
| Pushpin Label Position: | top |
| Coordinates: | 49.5333°N -134°W |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Type2: | District |
| Subdivision Name: | Canada |
| Subdivision Name1: | Ontario |
| Subdivision Name2: | Cochrane |
| Leader Title: | Mayor |
| Leader Name: | Jacques Dorval |
| Leader Title1: | Governing Body |
| Leader Title2: | MPs |
| Leader Name2: | Carol Hughes (NDP) |
| Leader Title3: | MPPs |
| Leader Name3: | Guy Bourgouin (NDP) |
| Established Title: | Incorporated |
| Area Land Km2: | 330.44 |
| Population As Of: | 2016 |
| Population Note: | [1] |
| Population Total: | 226 |
| Population Density Km2: | 0.7 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Postal Code Type: | Postal code |
| Postal Code: | P0L 1Z0 |
| Area Code: | 705, 249 |
| Website: | opasatika.net |
Opasatika is a township in the Canadian province of Ontario, located in the Cochrane District on the Opasatika River, a tributary of the Missinaibi River. Its name is of First Nation origin, meaning "river lined with poplars".[2]
The main communities in the township are Opasatika and Lowther, both located along Highway 11 between Mattice and Harty. The ghost town of Reesor Siding, site of the 1963 Reesor Siding incident, is at the western edge of the township. The former Canadian Forces Station Lowther was located in the municipality.
In the 2021 Census of Population conducted by Statistics Canada, Opasatika had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of 327.09km2, it had a population density of in 2021.[3]
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