There are two rivers named Montreal River in Ontario, Canada:

The Montreal River in eastern Ontario is a tributary of the Ottawa River, emptying into Lake Timiskaming. The Lady Evelyn River is a tributary of this river.

The Montreal River in the Algoma District flows southwest into Lake Superior south of Wawa, Ontario. A provincial nature reserve is located at the mouth of this river.

Both rivers are used to generate hydroelectricity.

See also

• List of Ontario rivers