Ontonagon Light
| Location | Off MI 64, Ontonagon, Michigan |
|---|---|
| Coordinates | 46°52′25″N 89°19′7″W / 46.87361°N 89.31861°W |
| Tower | |
| Constructed | 1853 |
| Foundation | Natural/emplaced |
| Construction | brick |
| Height | 34 feet (10 m) |
| Shape | square |
| Markings | yellow brick with black lantern |
| Heritage | National Register of Historic Places listed place, Michigan state historic site |
| Light | |
| First lit | 1853 |
| Deactivated | 1964 |
| Lens | 5th-order Fresnel lens |
Ontonagon Lighthouse | |
| Area | less than one acre |
| Built | 1866 |
| Built by | W.F. Chittenden |
| NRHP reference No. | 75000960 |
| Significant dates | |
| Added to NRHP | October 7, 1975 |
| Designated MSHS | May 17, 1973 |
The Ontonagon Light is a lighthouse located off M-64 near Ontonagon, Michigan. It was listed on the National Register of Historic Places in 1975 and designated a Michigan State Historic Site in 1973.