Bostonnais may refer to:

• Little Bostonnais River, La Tuque (City), Mauricie, Quebec, Canada
• Bostonnais River, La Tuque (City), Mauricie, Quebec, Canada
• La Bostonnais, Quebec (municipality), La Tuque, Mauricie, Quebec, Canada
• Grand Lake Bostonnais, La Tuque (urban agglomeration), Mauricie, Quebec, Canada
• Grand River Bostonnais (Portneuf), Portneuf Regional County Municipality, National Capitale Region, Quebec, Canada

• Jean-Baptiste Bostonnais, a trapper Abenaki, namesake of La Bostonnais, Quebec

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