The Miramichi Valley is a Canadian river valley and region in the east-central part of New Brunswick. It extends along both major branches of the Miramichi River and their tributaries, however it is generally agreed that the much larger Southwest Miramichi River forms the majority of this region as it is more settled than the Northwest Miramichi River.
Some communities throughout the valley include (from upriver to downriver): Juniper, Boiestown, Doaktown, Miramichi River Valley, Red Bank, Sunny Corner, Renous-Quarryville, and the city of Miramichi which is an amalgamation of the former towns of Newcastle and Chatham, as well as the former villages of Nelson-Miramichi, Loggieville and Douglastown.
There are three Mi'kmaq reserves within the Miramichi River watershed: Natoaganeg (Eel Ground) First Nation, Esgenoôpetitj (Burnt Church) First Nation, and Metepenagiag (Red Bank) Mi'kmaq Nation.