Mount Hanley Schoolhouse Museum, One-room schoolhouse museum in Mount Hanley, Annapolis County, Canada.

Mount Hanley Schoolhouse Museum is a one-room school built in 1850 on Mount Hanley Road, about nine kilometres northwest of Middleton, Nova Scotia. Its exterior is almost unchanged since 1850, apart from a woodshed added in 1892, and carved initials of former pupils remain visible in the wooden shingles. Inside are three original handmade "Dawson Desks" and one of the original slate blackboards.

The building was constructed in 1850 to replace an earlier wooden structure and served students until 1963 when rural schools began consolidating. A preservation society took over the property in the 2000s to maintain it as a museum.

The school was officially named Mount Hanley School Section No. 10. A community library opened in the building in the 1930s, and carved initials of generations of pupils remain visible in the wooden shingles.

The schoolhouse stands on its original site on the east side of Mount Hanley Road, facing Brown Road about nine kilometres northwest of Middleton. It is open to the public in summer and staffed by volunteers from the Mount Hanley and District Schoolhouse Museum Society. The society formed on June 1, 2005, and the Barteaux family donated the building to it in 2006.

Slocum attended until he was eight, when his family moved to Brier Island in 1854; he was born on a farm just west of the school. Clara Belle Marshall, another pupil, graduated from Acadia University in 1884 as its first woman graduate. The Joshua Slocum Centennial Society placed a memorial at the museum for the 1895 voyage's centenary.