Miscou Island (French: Île Miscou) is a Canadian island in the Gulf of St. Lawrence at the northeastern tip of Gloucester County, New Brunswick.
It is separated from neighbouring Lamèque Island to the southwest by the Miscou Channel with both islands forming Miscou Harbour. Lamèque Island and Miscou Island separate Chaleur Bay from the Gulf of Saint Lawrence.
Miscou Island is from the Mi'kmaq 'Susqu,' meaning "low land" or "boggy marsh". "It forms an admirable descriptive name, for the most striking fact about the physical geography of Miscou is the prevalence of open bogs..." (Ganong)[1]
The Miscou Channel is bridged between the community of Little Shippegan on Lamèque Island to the community of Miscou Harbour on Miscou Island by the Miscou Island Bridge which opened in 1996, replacing a cable ferry and physically connecting Route 113.
The island formed its own local service district from 1980 until the end of 2022;[2] it now comprises the Acadian Peninsula rural district.[3]