The Cedar River is a river in the U.S. state of Michigan, flowing through Clare County and Gladwin County.
The main branch of the river is formed by the confluence of Cranberry Creek and the West Branch Cedar River at in Hamilton Township, Clare County. It flows into the Tobacco River at in Beaverton.
The North Branch Cedar River rises at in northwest Gladwin County in Sherman Township east of Meredith near the border with Roscommon County, and joins the main branch at a few miles northwest of Wiggins Lake.
The Middle Branch Cedar River rises at in northeast Clare County in Franklin Township just west of Meredith. It flows mostly south and joins with the West Branch at in Hamilton Township, near the Gladwin County border.
The West Branch Cedar River rises at in Franklin Township, a few miles southwest of Meredith. Another tributary, Cranberry Creek rises in Arnold and Cranberry lakes a few miles northeast of Harrison.
The Little Cedar River is not a tributary of the Cedar River, but flows into the Tobacco River approximately downstream from Beaverton.
From the mouth:
The Cedar River drains portions of the following: