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.

[2] Its name is of indigenous origin, meaning "surrounded by poplar".

[3] The main communities in the township are Opasatika and Lowther, both located along Highway 11 between Mattice and Harty.

The former Canadian Forces Station Lowther was located in the municipality.

This Northern Ontario geographical article is a stub.