Crossover Island Light is a lighthouse on the Saint Lawrence River in New York state near the Canada–United States border. The lighthouse was established in 1848 and the last tower was first lit in 1882. The lighthouse was deactivated in 1941. The foundation is stone molehead and the lighthouse is made out of cast iron with brick and wood lining. The tower is a white conical tower with a red lantern. The original lens was a sixth-order Fresnel lens. The lighthouse was added to the National Register of Historic Places as Crossover Island Light Station in 2007.