John Randolph Chambliss Jr. (January 23, 1833 – August 16, 1864) was a career military officer from Virginia who served in the Confederate States Army.

It was distinguished by having 15 future Civil War generals in it, including fellow Southerners John S. Bowen, Henry B. Davidson, and Hood, who all joined the CSA.

[2] In April 1863, when the cavalry corps of the Union Army of the Potomac attempted to cross the Rappahannock and cut General Lee's communications with Richmond, Chambliss was particularly prominent in turning back this movement.

In the Battle of Brandy Station, after Fitzhugh Lee was wounded and Col. Solomon Williams killed, Chambliss took command of the brigade.

[2] During the subsequent Bristoe Campaign, still in command of the brigade, Chambliss reinforced Lunsford L. Lomax at Morton's Ford and defeated the enemy.

Promoted to brigadier general, Chambliss continued in command of the brigade, through the cavalry fighting from the Rapidan River to the James.

Finally, in a cavalry battle on the Charles City Road, on the north side of the James River, Chambliss was killed while leading his men.

Robert E. Lee wrote that "the loss sustained by the cavalry in the fall of General Chambliss will be felt throughout the army, in which, by his courage, energy and skill, he had won for himself an honorable name.