Cedar Island Light is a lighthouse in Cedar Point County Park in East Hampton, New York. It overlooks Gardiners Bay.

Location: Cedar Point County Park, Sag Harbor, Gardiners Bay, Long Island
Coordinates: 41°2′26.9″N 72°15′39.5″W
Address: Cedar Point Rd, East Hampton, NY 11937
Constructed: 1839
Foundation: Masonry pier
Construction: Granite
Automated: 1934
Height: 30 feet (9.1 m)
Shape: Square unpainted granite
First lit: 1839
Deactivated: 1934
Focal height: 57 feet (17 m)
Lens: Sixth order Fresnel 1855
Range: 5 nautical miles (9.3 km; 5.8 mi)
Characteristic: Fl G 4s - Flashing Green 4 s.

I visited this light on October 19, 2023

When I was there the lantern had been removed for restoration

The lighthouse is owned by Suffolk County. Grounds open, dwelling/tower closed.

Added to National Register of Historic Places on April 18, 2003

Access: Car and a hike along the beach on sand and shells.