Boon Island Light is located on the 300-by-700-foot Boon Island off the southern coast of Maine, United States, near Cape Neddick. Boon Island Light has the distinction of being the tallest lighthouse in both Maine and New England at 133 feet (41 m). The lighthouse has a focal plane at 137 feet (42 m) above mean high water. The light's beacon flashes white every 5 seconds.

Boon Island is a barren, rocky island in the Gulf of Maine 6 mi (9.7 km) off the coast of York, Maine, United States. The island, which is approximately 300 ft (91 m) by 700 ft (210 m) at low tide, is the site of Boon Island Light, at 137 ft (42 m) high, it is the tallest lighthouse in New England. Numerous vessels have been wrecked on its rocky shoreline. John Winthrop, the English Puritan lawyer and one of the leading figures in founding the Massachusetts Bay Colony, mentions passing Boon Island in the 1600s.