Elphege Alfred Mailliot Gendreau (29 June 1888 – 21 July 1943) was an officer of the United States Navy during World War I and World War II. Gendreau was born in Canada on 29 June 1888. Gendreau was commissioned Assistant Surgeon, Medical Reserve Corps, with the rank of Lieutenant (junior grade) on 20 August 1915. He served on USS Glacier (AF-4) in Mexican waters during political unrest in that country, and in Charleston (C-22) during World War I.