Andrew Porter (Civil War general)

Andrew Porter
Born(1820-07-10)July 10, 1820
DiedJanuary 3, 1872(1872-01-03) (aged 51)
Paris, France
Place of burial
AllegianceUnited States of America
Union
BranchUnited States Army
Union Army
Service years1846–1864
Rank Brigadier General
CommandsProvost Marshal General of the Army of the Potomac
ConflictsMexican–American War
American Civil War:
 • First Battle of Bull Run
 • Peninsula Campaign
SpouseMargaretta Falconer Biddle

Andrew Porter (July 10, 1820 – January 3, 1872) was an American army officer who was a brigadier general in the Union Army during the American Civil War. He was an important staff officer under George B. McClellan during the 1862 Peninsula Campaign, serving as the Provost Marshal of the Army of the Potomac.