John B. Jones (December 22, 1834 – July 19, 1881) was a Confederate army officer, Texas Ranger captain, and Adjutant General of Texas. Born in Fairfield, South Carolina, his family moved to the Republic of Texas in 1838. At the beginning of the Civil War, Jones enlisted and served in the Eighth Texas Cavalry regiment (better known as "Terry's Texas Rangers") under the command of Benjamin Franklin Terry. He was later promoted to the rank of major.