The 9th Texas Cavalry Regiment was a unit of mounted volunteers that fought in the Confederate States Army during the American Civil War.

Discouraged, Cooper ordered his column to return to Fort Gibson and a Confederate cavalry brigade under James M. McIntosh took up the pursuit.

[4][note 1] After the 9th Texas Cavalry moved to Arkansas in February 1862, two companies went on Lawrence Sullivan (Sul) Ross's raid into Missouri.

The brigade was part of Benjamin McCulloch's division which was soon incorporated into a Confederate army led by Earl Van Dorn.

[5] At the Battle of Pea Ridge on 6 March 1862, the cavalry brigade advanced east on the Ford Road toward an intended junction with a second Confederate division under Sterling Price at Elkhorn Tavern.

At mid-morning, without warning, a force of Union cavalry and three artillery pieces appeared to the south and began shelling the Confederate horsemen.

Fearing that the soldiers might lose heart, McCulloch's staff foolishly did not notify the second-line regimental leaders.

[10] After several hours of idleness under a demoralizing shelling, the Confederate unit commanders finally found out about the deaths of their leaders at 3:00 pm.

Quayle and the commanders of three other cavalry units and two artillery batteries refused to obey Pike's orders and remained on the field.

[11] During the night the 9th Texas and other units marched to join Van Dorn and Price at Elkhorn Tavern for the second day of battle.

[3] During the Second Battle of Corinth on 3–4 October 1862, the 9th Texas Cavalry served dismounted in Charles W. Phifer's brigade in the division of Dabney H. Maury.

[14] In the first day's action, the 9th Texas captured a two gun section of John Welker's Battery H, 1st Missouri Light Artillery.

Leading Van Dorn's retreat, John Creed Moore's brigade was ambushed by Federals and lost 300 men on the west bank of the Hatchie River.

Taking the Federal garrison by surprise, the Confederate horsemen captured 1,500 men and burned supplies worth US$1.5 million.

[24] Van Dorn ordered Jackson's troopers to dismount and attack Coburn's soldiers from the front, while Nathan Bedford Forrest's division circled around from behind.

[3] On 4 June 1863, W. H. Jackson reported that Whitfield's cavalry brigade numbered 123 officers and 1,354 men present for duty in the 3rd, 6th, 9th, and 27th Texas.

The Department of Alabama, Mississippi, and eastern Louisiana surrendered to Federal forces on 4 May 1865 and members of the regiment signed their paroles on 15 May.