Honoré Mercier (disambiguation)

Honoré Mercier may refer to:
 * Honoré Mercier (1840–1894), a former Premier of Quebec
 * 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 and grandson 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