West Meadow Beach Historic District is a peninsula of public park-land approximately 1.5 miles long and a national historic district located in northwestern Stony Brook in Suffolk County, New York. The district through much of the 20th century contained 120 summer cottages built along West Meadow Beach on Long Island Sound. Most were constructed during the 1920s and 1930s (although some are dated much earlier and others rebuilt as late as the 1980s), under deeds provided as political favors.