Misquamicut State Beach (MISS-kwahm-eh-kut[3]) is a seaside public recreation area in the town of Westerly, Rhode Island.

[4] It occupies a portion of Misquamicut Beach, a 3-mile-long (4.8 km) barrier island that extends westward from Weekapaug to Watch Hill and separates Winnapaug Pond from the Atlantic Ocean.

[5] The beach's 40-year old septic system failed in 1992, at which time waterless composting toilets were introduced which allowed the park to stay in operation.

[5] A beach pavilion was added to the site in 1999 at a cost of $1.5 million,[5] named for Westerly native State Senator James J. Federico, Jr.

[8] Hurricane Sandy blew much of the beach into the parking area in 2012; the state moved some 30,000 cubic yards of sand back onto the shoreline,[9] and the U.S. Army Corps of Engineers completed the beach replenishment project in 2015, using an inland sand source.