Marie-Joseph Godefroy de Tonnancour (June 5, 1786 – September 2, 1850) was a seigneur and political figure in Lower Canada.
He represented Trois-Rivières in the Legislative Assembly of Lower Canada in 1820.
He was born in Yamaska, the son of Joseph-Marie Godefroy de Tonnancour and Marie-Catherine Pélissier, and was educated at the Séminaire de Québec, the College Louis le Grand in Paris and Oxford University.
[1] Godefroy de Tonnancour received his commission as a lieutenant in the militia in 1803 and served as a captain during the War of 1812, later reaching the rank of lieutenant-colonel.
Marguerite, the sister of his first wife, married Jean-Olivier Arcand, who also served in the assembly.