Carnot Posey (August 5, 1818 – November 13, 1863) was a Mississippi planter and lawyer, and a Confederate general in the American Civil War.

During the Mexican War, Posey was commissioned as a first lieutenant in the 1st Mississippi Rifles, a volunteer regiment commanded by future Confederate President Jefferson Davis.

Posey recruited a local militia company, the Wilkinson Rifles, and enlisted them into Confederate service.

[2] Posey suffered a slight wound at the Battle of Cross Keys in June 1862 during Major General Stonewall Jackson's Valley Campaign.

[4] The following May, Posey's brigade saw limited action at the Battle of Chancellorsville, maintaining a reserve position at Salem Church.

During the army reorganization following Stonewall Jackson's death, Posey's brigade was assigned to Major General Richard H. Anderson's division of the Third (A.P.

He died a month later in November, in Room 33 West Lawn at the University of Virginia, where he had lived as a law student.