Coordinates: 49°08′49″N 0°22′31″W / 49.1469°N 0.3753°W / 49.1469; -0.3753

Fleury-sur-Orne is a commune in the Calvados department in the Basse-Normandie region in northwestern France.

Fleury-sur-Orne, forms part of outlying Greater Caen, composed of 18 communes and 198,023 inhabitants.

Until 1916 Fleury-sur-Orne was known as Allemagne (Calvados) after the Alamanni tribe which once guarded the ford across the Orne. During the First World War this name, meaning in French Germany, became inconvenient and embarrassing for the inhabitants (unlike those of Allemagne-en-Provence in Southern France). The Town council therefore decided on 23 August 1916, to change the name and to call it Fleury-sur-Orne in memory of the commune of Fleury-devant-Douaumont, a commune of the Meuse (in 1914: 422 inhabitants, school, church, town hall, 13 tradesmen, 10 landholding farmers), which was destroyed in 1916.

In 1047, Duke William of Normandy (later William the Conqueror), helped by Henry I, king of France, put an end to a revolt of Norman barons at the Battle of Val-ès-Dunes, close to the villages of Chicheboville, Secqueville and Bourguébus. Little is known about this battle, but it seems to be have been a purely cavalry contest, with neither infantry nor archers playing a significant role.