Adolphustown is a geographic area located in Greater Napanee, Ontario, Canada, on the Adolphus Reach of the Bay of Quinte in Lake Ontario. Adolphustown is now part of the town of Greater Napanee. The rural character of the Adolphustown region remains largely undisturbed today and the area, with its picturesque lakefront location, remains popular for the cultivation of apples and strawberries.