The Ladies Delight Light is a small lighthouse on Lake Cobbosseecontee, in Winthrop, Maine, United States. It was constructed in 1908 and is believed to be the only active inland waters lighthouse in Maine. The tower is 25 feet (7.6 m) tall, and is equipped with a 100-watt light bulb further intensified by a lens from a ship's anchor light. At the time of its construction, it was the only inland lake lighthouse east of the Mississippi River. It was listed on the National Register of Historic Places in 1984.