Moustache, sometimes abbreviated to Mous, (September 1799 – 11 March 1812) was a barbet who is reputed to have played a part in the French Revolutionary and Napoleonic Wars. His story is recounted in many publications but may be partly fictionalised. Moustache is said to have been born in Falaise, Normandy, France, in 1799 and to have joined a grenadier regiment at Caen. He followed the regiment through the Italian Campaign of the Revolutionary Wars and is said to have alerted the regiment to a surprise night attack by Austrian forces. He is reported to have been present at the Battle of Marengo, during which he lost an ear, and with a cuirassier regiment at the Battle of Austerlitz.