Lt.-Colonel The Hon. Roderick Mackenzie of Terrebonne (c.1761 − August 15, 1844) was a prominent Canadian fur trader, landowner and politician. He was a partner in the North West Company and a member of the Beaver Club at Montreal. He was a lifelong friend and the private confidant of his first cousin, Sir Alexander Mackenzie. He was an intellectual who established a library at Fort Chipewyan and both wrote and published works on the fur trade. In 1801 he made his home at Terrebonne, Quebec, purchasing the Seigneury in 1814, although he was forced by a court action to relinquish his title to the property in 1824. He continued to live there until his death. He held many public appointments, most notably as a member of the Legislative Council of Lower Canada.