The flag and coat of arms of Normandy are symbols of Normandy, a region in the north-western France.
The traditional provincial flag, gules, two lion passant or, is used in both former regions of France: Lower Normandy and Upper Normandy. It is based on the design of arms which had been attributed toWilliam the Conqueror, ultimately related to the 12th-century coat of arms of the House of Anjou.
The red flag with two lion is nicknamed les p'tits cats "the little cats" in Norman. The three-lion version (known in the Norman language as les treis cats, "the three cats") may also be seen, which is based on the coat of arms of Richard I of England, last Duke of Normandy. The arms De gueules aux deux léopards d'or, armés et lampassés d'azur, passant l'un sur l'autre (Gules two lions passant gardant in pale or armed and langued azure) was described by Jacques Meurgey in 1941.
In 1939 Jean Adigard des Gautries created the flag of Saint Olaf, a Nordic cross flag inspired by the Papal Cross borne on a standard by William the Conqueror. The Le Mouvement Normand adopted this flag in the 1970s, and it is used unofficially by some associations and individuals, especially those with an interest in the Viking origins of the Normans, although the Normans are also of Celtic (Belgae and Gauls) and Continental Germanic (Franks) origins. A flag combining the Saint-Olaf and the P'tit Cats, called the Croix de Falaise (Falaise cross) can sometimes be seen.