Thomas Stanhope Flournoy (December 15, 1811 – March 12, 1883) was a U.S. Representative from Virginia and a cavalry officer in the Confederate States Army during the American Civil War.

He then entered the Confederate States Army, raised a company of cavalry, and initially served as its captain.

He participated in Stonewall Jackson's 1862 Valley Campaign and saw action at the battles of Port Republic and Cross Keys.

He died at his home in Halifax County, Virginia, March 12, 1883, and was interred in the family plot on his estate.

This article incorporates public domain material from the Biographical Directory of the United States Congress