Bethel Beach Natural Area Preserve is a 105-acre protected coastal landscape in Mathews County, Virginia, near the Chesapeake Bay. Within a relatively compact area, it includes beach, low dune, and salt marsh habitats. The preserve is important as a haven for rare marsh and colonial nesting birds and for protecting habitat used by two globally rare species, the northeastern beach tiger beetle and sea-beach knotweed. Owned and maintained by the Virginia Department of Conservation and Recreation, it is open to the public and remains largely undeveloped, with only a gravel parking area for visitors.