Caribou Island Light, Federal heritage lighthouse in Thunder Bay District, Canada.

Caribou Island Light is a 31.5-metre hexagonal concrete tower with six flying buttresses, standing on Lighthouse Island, a tiny islet a few hundred feet across about 1 mile west of the southern tip of Caribou Island in eastern Lake Superior. The tower is painted white, while the lantern, gallery and watch room are red. It is unmanned and owned by the Canadian Coast Guard.

Parliament approved funding for the lighthouse in 1884, and operations began on August 26, 1886. The tower and its original fog trumpet were part of early efforts to make navigation through Lake Superior's dangerous eastern waters safer for sailors.

The station was established in 1886, and the present tower dates from 1912. Its keepers included Charles James Pim (1887–1898) and Arthur W. Hurley, who served from 1935 to 1962. The light is now unmanned and owned by the Canadian Coast Guard.

The lighthouse stands on Lighthouse Island, a tiny islet a few hundred feet across, one mile west of the southern tip of Caribou Island. It is reachable only by boat or floatplane through a shallow, rocky harbour on the east side, or by helicopter via a landing area on the north side. The island is uninhabited and has no facilities.

The station was established in 1886, but the present tower dates from 1912. Its original optic showed a 30-second revolving cycle and was visible for 16 miles; today the light flashes white every 15 seconds. The tower stands on Lighthouse Island, a few hundred feet across, one mile west of the southern tip of Caribou Island.