Weymouth Back River Reservation is a protected coastal area at the northern end of the Weymouth Back River in Hingham and Weymouth, Massachusetts. Part of Greater Boston’s Metropolitan Park System, it unites parkland on both sides of the river near the Route 3A Bridge as a chain of linked shoreline parks rather than one continuous tract. These include Abigail Adams Park and Great Esker Park on the Weymouth side, and Stodder's Neck and Bare Cove Park on the Hingham side. Its importance lies in preserving public access to the river while connecting local parks in a scenic setting of water views, trails, and landscaped grounds.