Louis Gauvreau (May 11, 1761 – August 16, 1822) was a businessman and political figure in Lower Canada.
He was born in Petite-Rivière-Saint-Charles near Quebec City in 1761 and studied at Quebec.
He owned a general store and was also involved in lumber, wholesale trade, real estate and money-lending.
In 1815, he purchased the fief of Grosse-Île and, in 1817, a large part of the seigneury of Rivière-du-Sud.
Gauvreau was also a member of the Quebec Fire Society.
In 1783, he had married Marie-Louise Beleau.
In 1805, after her death, he married Josette Vanfelson, the sister of lawyer George Vanfelson.
He was elected to the Legislative Assembly of Lower Canada for Quebec County in 1810; he represented that region in the assembly until his death at Quebec City in 1822.