Beauharnois
Beauharnois has the following meanings:
- Beauharnois (Québec) , city in the Canadian province of Québec
- Beauharnois-Salaberry , regional county town in Québec
- Beauharnois hydropower plant , major run-of-river power plant in Québec
- Fort Beauharnois , French fort on the upper reaches of the Mississippi
- Battle of Beauharnois , skirmish during the 1837 rebellions
