Elvira Concepción Josefina de la Fuente Chaudoir (born 1910 or 1911 – died January 1996) was a Peruvian socialite and a double-agent for the British Secret Intelligence Service during World War II. Chaudoir's deceptive communications to the Abwehr are credited with preventing the 11th Panzer Division from reinforcing German forces at Normandy.