Montmirail may refer to: Places Dentelles de Montmirail, a small chain of mountains in the Vaucluse department, southern France Montmirail, Marne, in the Marne department, France Battle of Montmirail, a battle fought in 1814 during the Six Days' Campaign of the Napoleonic Wars , on the list of châteaux in Champagne-Ardenne Montmirail, Sarthe, in the Sarthe department, France , on the list of châteaux in the Pays-de-la-Loire Montmirail, Neuchâtel, a hamlet near Neuchâtel, Switzerland People Cécile de Montmirail (16th century), married to Antoine de La Rochefoucauld Jean de Montmirail (1165–1217), French nobleman who became a Cistercian monk Guillaume de Montmirail, French nobleman and first mayor of La Rochelle in 1199 Renaud de Montmirail, French nobleman, member of the Fourth Crusade Godefroy de Montmirail, a fictional character in the French film Les Visiteurs