Fort Meadow Reservoir is a 260-acre lake in between the town of Hudson and city of Marlborough, Massachusetts, United States.

At its widest point, the lake measures roughly 700 meters (2,300 ft).

Amory Maynard, the founder of Maynard, Massachusetts, originally operated a saw mill on the channel leading into Fort Meadow Reservoir before the City of Boston acquired his water rights.

The lake consists of a primary and secondary basin, separated by a narrows near the center of the two.

Motorized boating is allowed, making it a popular local destination for recreation.