Monhegan Island Light is a lighthouse

Lighthouse

A lighthouse is a tower, building, or other type of structure designed to emit light from a system of lamps and lenses or, in older times, from a fire, and used as an aid to navigation for maritime pilots at sea or on inland waterways....

 on Monhegan Island, Maine.
It was first established in 1824. The present structure was built in 1850. It was Alexander Parris's

Alexander Parris

Alexander Parris was a prominent American architect-engineer. Beginning as a housewright, he evolved into an architect whose work transitioned from Federal style architecture to the later Greek Revival. Parris taught Ammi B. Young, and was among the group of architects influential in founding what...

 last significant design. It is the second highest light in Maine — only Seguin Light

Seguin Light

Seguin Light is a lighthouse on Seguin Island at the mouth of the Kennebec River, Maine.It was first established in 1795. The present structure was built in 1857. It is the highest lighthouse on the Maine coast and has the only first order Fresnel lens ever used there...

, on a significantly higher island, is higher. It had a fog bell from 1854 until 1870, when the Manana Island Sound Signal Station

Manana Island Sound Signal Station

Manana Island Sound Signal Station is a fog signal station on Manana Island, Maine, United States.It was first established in 1855. Although it is listed separately in the USCG Light List, it is effectively the fog signal for Monhegan Island Light, about one half nautical mile to the east.Manana...

was built.

Monhegan Island Light was listed on the National Register of Historic Places as Monhegan Island Lighthouse and Quarters on May 7, 1980, reference number 80000239.