The Harry Gibbons Migratory Bird Sanctuary is a migratory bird sanctuary in Kivalliq Region, Nunavut, Canada. It is located in western Southampton Island in the area of the Boas River and Bay of Gods Mercy. The Sanctuary was established 1 January 1959, and consisting of 149,500 hectares,. Of its 1224 km2 in overall size, 78 km2 is a marine area with marine, intertidal, and subtidal components. The sanctuary was named after Harry Gibbons Ohnainewk (c. 1900–1954), a local Inuit hunter and guide whose journals provided valuable weather data, especially on wind. It is one of two bird sanctuaries on the island, the other being the East Bay Migratory Bird Sanctuary, situated 87 mi to the northeast.

Other designations

Along with its wetlands, the Boas River is a Canadian Important Bird Area (site #NU022). The Harry Gibbons MBS takes up the western portion of the IBA.