|West Branch Oyster River|
|• elevation||170 feet (52 m)|
|90 feet (27 m)|
|Length||3.3 miles (5.3 km)|
|Progression||Oyster River – Saint George River – Muscongus Bay|
The West Branch Oyster River is a 3.3-mile-long (5.3 km) tributary of the Oyster River in Warren, Maine. From its source (), the stream runs about 2 miles south and 1 mile east to its confluence with the main stem of the Oyster River.