The Civil Code of Lower Canada was a law that was in effect in Lower Canada on 1 August 1866 and remained in effect in Quebec until repealed and replaced by the Civil Code of Quebec on 1 January 1994. The Code replaced a mixture of French law and English law that had arisen in Lower Canada since the creation of the British Province of Quebec by the Royal Proclamation of 1763, as modified by the Quebec Act in 1774.

Charles Dewey Day, was a lawyer, political figure, and judges in Lower Canada and Canada East. He was a member of the Special Council of Lower Canada, which governed Lower Canada after the Lower Canada Rebellions in 1837 and 1838. He was elected to the first Legislative Assembly of the Province of Canada in 1841, but resigned in 1842 to accept an appointment to the Court of Queen's Bench of Lower Canada.