The Hadlyme Ferry Historic District encompasses a collection of historic buildings related to the Chester–Hadlyme Ferry in the Hadlyme village of Lyme, Connecticut. It is located at the eastern end of the ferry route across the Connecticut River, where ferries have been documented to run since 1769. The district includes six houses dating to the late 18th or early 19th century, as well as the site of the ferry slip. It was listed on the National Register of Historic Places in 1994.