The Smith Point Bridge is a steel bascule drawbridge in Shirley, New York that connects Long Island to Fire Island. Located on the south shore of central Suffolk County, the bridge carries William Floyd Parkway across The Narrows between Bellport Bay and Moriches Bay. It connects Long Island with Smith Point County Park and the Otis Pike Fire Island High Dune Wilderness, both are a part of the Fire Island National Seashore.

Shirley is a hamlet in Suffolk County, New York, United States. At the 2010 census, the population of Shirley was 27,854. Shirley is the western terminus of Atlantic Crossing 1, a major submarine telecommunications cable linking the United States with the UK, Germany, and the Netherlands. Soon, the Emerald Express transatlantic communications cable will provide data connectivity between Europe and North America, landing in Shirley.