Belle-Baie-Belledune is a Canadian provincial electoral district for the Legislative Assembly of New Brunswick. It was created out of parts of Restigouche-Chaleur and Bathurst West-Beresford.
It was created in 2023 and was first contested during the 2024 New Brunswick general election. It is the largest successor of now abolished Restigouche-Chaleur. The riding largely comprises Belle-Baie and Belledune, with a part of the Chaleur Rural District.