List of Texas Civil War Union units

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{{Requested move notice|1=List of Texas units in the Civil War: Union|2=Talk:List of American Civil War units by state#Requested move 29 May 2025}}

This is a list of Texas Union Army units that served in the American Civil War. The Confederate civil war units are listed separately. Although Texas seceded in 1861, there was a pro-Union minority within the state that organized several units for the Union Army. It is estimated that some 2,000 Texans served the Union during the war.

• 1st Texas Cavalry Regiment
• 2nd Texas Cavalry Regiment (merged with 1st Texas Cavalry Regiment in 1864){{cite book |title=Official Army Register of the Volunteer Force of the United States Army for the Years 1861, '62, '63, '64, '65 |date=August 31, 1865 |publisher=Office of the Adjutant General of the U.S. Army |page=[https://archive.org/details/cu31924092911100/page/n74 1161] |edition=Part IV |url=https://archive.org/details/cu31924092911100 |accessdate=22 June 2019}}
• 2nd Texas Cavalry Regiment (1865)
• Hamilton's Body Guard, Texas Cavalry
• Independent Partisan Rangers, Texas Cavalry