Louis-Hippolyte Lafontaine, Canadian jurist and politician, 3rd Premier of Canada East (born 1807)

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.

This is a list of the joint premiers of the Province of Canada, who were the heads of government of the Province of Canada from the 1841 unification of Upper Canada and Lower Canada until Confederation in 1867.