The Nemasket or Namasket River is a small river in southeastern Massachusetts. It flows north 11.2 miles (18.0 km)[1][2] from Assawompset Pond in Lakeville and through Middleborough where it empties into the Taunton River.[3] The Nemasket's sole tributary is Fall Brook, which drains out from Tispaquin Pond.
In Wampanoag Nemasket means Place where the fish are, because it is the largest alewife run on the Eastern Seaboard.[4] The water is clear and there are several good places for launching unmotorized boats, with popular spots including Old Bridge Street, Wareham Street, and Oliver Mill Park on U.S. Route 44.