Maurice-Régis Blondeau (23 June 1734 – 13 July 1809) was a fur trader, militia officer, and office holder in Canada.
In 1757, during the French and Indian War, he went into the employee of Joseph-Michel Cadet, who was purveyor general with the French forces in New France, and spent a year at Fort St. Frédéric at Lake Champlain. After 1763 he made a successful foray into the west, visiting Fort La Reine and Fort Dauphin, two original La Vérendrye forts. He then organized trading trips to Grand Portage and Fort Michilimackinac for his father. His trading parties and partnerships grew larger and so did his wealth.
Blondeau became an important businessman in Montreal and was actively involved in a variety of real estate endeavors. He partnered with Joseph Quesnel on a number of business ventures. He was also a captain in the militia and a justice of the peace. Maurice-Régis was also a founder of the Beaver Club in Montreal.