Louis Proulx (October 29, 1751 – March 3, 1838) was a seigneur, businessman and political figure in Lower Canada.
He was involved in the sale of grain and trading cattle and also became owner of a ship.
He also invested in property, acquiring the seigneuries of La Lussodière and Saint-François.
Proulx was elected to the Legislative Assembly of Lower Canada for Buckingham in 1804.
His daughter Marie-Anne married surveyor François Legendre who also represented Buckingham in the assembly.