Terrebonne was an electoral district of the Legislative Assembly of the Parliament of the Province of Canada, in Canada East. It was centred on the town of Terrebonne, immediately north-west of Montreal. It was created in 1841, based on the previous electoral district of the same name for the Legislative Assembly of Lower Canada.

Sir Louis-Hippolyte Ménard dit La Fontaine, 1st Baronet, KCMG was a Canadian politician who served as the first Premier of the United Province of Canada and the first head of a responsible government in Canada. He was born in Boucherville, Lower Canada in 1807. A jurist and statesman, La Fontaine was first elected to the Legislative Assembly of Lower Canada in 1830. He was a supporter of Papineau and member of the Parti canadien. After the severe consequences of the Rebellions of 1837 against the British authorities, he advocated political reforms within the new Union regime of 1841.