William Price Sanders (August 12, 1833 – November 19, 1863) was an officer in the Union Army in the American Civil War who died at the Siege of Knoxville.

He was a cousin of Jefferson Davis, Confederate General Richard Montgomery Gano, and Confederate Captain William Hubbel Price (the later two through John Gano their great-grandfather), while his sister Elizabeth Jane married attorney, mining magnate and thoroughbred horse breeder James Ben Ali Haggin (December 9, 1822 – September 13, 1914), a business partner of George Hearst and the owner of Elmendorf Farm in Lexington, Kentucky.

[3] Sanders attended the United States Military Academy at West Point from 1852 to 1856, but was not an outstanding cadet, graduating 41st in his class.

[5] Burnside then decided to have Sanders lead a raid into East Tennessee, where he was to scout out the enemy, as well as disrupt communication and transportation networks.

[6][5] On November 18, 1863, Sanders was shot in the side and mortally wounded by a sharpshooter of the forces under the command of Confederate Col. Edward Porter Alexander, his old roommate and classmate at West Point.

Sanders was fighting to stop Confederate movement on the Kingston Road about 1 mile (1.6 km) in front of the Knoxville defenses.

In addition, the Sons of Union Veterans has a chapter in East Tennessee named in memory of "Colonel William P. Sanders".

Ironically, the marker is on the property of Second Presbyterian Church, which relocated from downtown Knoxville to the place where William Sanders was hit.