Honoré Mercier may refer to: Honoré Mercier (1840–1894), a former premier of Quebec, Canada Honoré Mercier Jr. (1875–1937), a member of the Legislative Assembly of Quebec, son of the above Honoré Mercier III (1908–1988), a member of the Legislative Assembly of Quebec, son of the above Honoré Mercier Bridge, connecting the Island of Montreal to the south shore of the Saint Lawrence River Honoré-Mercier (electoral district), a federal electoral district in Quebec