McMasterville is a city in southwestern Quebec, Canada on the Richelieu River in La Vallée-du-Richelieu Regional County Municipality.

McMasterville is located along the Richelieu river, on the shore facing Mont St-Hilaire and Otterburn Park.

"Northvolt officialisera jeudi la construction d'une usine en Montérégie" (in French).

The town is host to the École d'éducation internationale which offers secondary level education where students can follow the International Baccalaureate Middle Years Programme as defined by the IBO.

The South Shore Protestant Regional School Board previously served the city.