The Pic River is a river in Thunder Bay District, Ontario which flows from its headwaters east of Longlac and empties into Lake Superior south of the town of Marathon.
Tributaries include the
The Hudson's Bay Company operated a trading post at the mouth of the river during the 19th century. The river was later used to transport logs to sawmills down stream.
The Pic River First Nation reserve is located nearby.
The river's name may be an abbreviation of the Ojibwe name pekatek or "mud", which describes its silty water. A large beach and an extensive system of sand dunes are found at the river's mouth.