Oldham Pond is a 235-acre Great Pond located in the towns of Pembroke and Hanson. Oldham Pond receives water from a small tributary, cranberry bogs, and wetland areas and serves as the headwaters of Herring Brook; its outflow drains into Furnace Pond which is located immediately to the south. The pond’s 2.8 miles of shoreline are heavily developed with houses and a summer camp. The pond has three wooded islands, the largest of which is known as Monument Island, and numerous rocky shoals. Except for the islands and rocky shoal areas, much of the pond is fairly uniform in depth with an average depth of 10 feet and a maximum depth of 17 feet. Aquatic vegetation, primarily submerged aquatics, is abundant. The bottom is predominantly mud except for the rocky shoal areas. The pond was treated in 2017 with Alum to remove Phosphorus to end toxic cyanobacteria blooms.

Access to is provided by a town-managed ramp located next to the town beach off Wampatuck Street, which is located to the north of MA-14 (Matakeesett Street) and Furnace Pond. The ramp is suitable only for small trailered boats, cartop boats and canoes. Parking for a half dozen vehicles is available in a dirt lot across the street.