Louis Archambeault (November 7, 1814 – March 3, 1890) was a Quebec notary and political figure. He was a Liberal-Conservative Member of Parliament representing L'Assomption from 1867 to 1874. He was born Louis Archambault at Longue-Pointe (now part of Montreal) in Lower Canada in 1814. He became a notary in 1836 and set up a practice at Saint-Roch-de-l’Achigan, also becoming mayor. He was warden of Leinster County from 1848 to 1853, when the county was split into L'Assomption and Montcalm; he was warden of L'Assomption in 1854 and 1877. He died at L'Assomption in 1890.