Narraguagus Light is a lighthouse on Pond Island at the southern extent of Narraguagus Bay in Downeast Maine. It was built as an aid to navigation for the bay, and the port of Milbridge, then an important deep-water shipbuilding port. It was deactivated in 1934, and is now privately owned. It was listed on the National Register of Historic Places as "Narraguagus Light Station" on November 20, 1987.