| Battle Island Light | |
| Location: | Battle Island, Ontario |
| Coordinates: | 48.7518°N -87.5573°W |
| Yearbuilt: | 1877 (first) |
| Yearlit: | 1911 (current) |
| Automated: | 1991 |
| Construction: | wooden-frame (first) poured concrete tower (current) |
| Shape: | tapered octagonal tower with balcony and lantern |
| Marking: | white tower, red lantern |
| Height: | 43feet |
| Focalheight: | 117feet |
| Range: | 18miles |
| Characteristic: | Fl (3) W 24s. |
| Managingagent: | Canadian Coast Guard[1] |
Battle Island Light is a lighthouse on the Canadian shore of Lake Superior. It is located on the westerly point of Battle Island, 28.5miles east-northeast from Lamb Island Light.
It was built as a white light, visible for 18miles in clear weather. When built, it operated as a bright flash, four-second interval, bright flash, four-second interval, and then bright flash, 16-second interval, with a concurrent lower-strength light operating at 12-seconds constant/ 12 seconds eclipsed. Its fog horn (originally referred to as a "fog diaphone") blasted for 3½ seconds and was then silent for 26½ seconds.[2] The lighthouse was rebuilt in 1915–16 in response to increased demand from local wood pulp carriers and commercial fishing boats.