Owaissa Lake is a lake in geographic Preston Township, Nipissing District in Northeastern Ontario, Canada.

[1][2][3] It is in Algonquin Provincial Park and is part of the Saint Lawrence River drainage basin.

Owaissa Lake has two unnamed inflows, at the north and southwest.

The lake is 2 kilometres (1.2 mi) north of the Shall Lake access point to Algonquin Provincial Park.

[3] This Ontario location article is a stub.