Jacksboro is a city in Jack County, Texas, in the United States. Its population was 4,184 at the 2020 census. U.S. Highways 281 and 380, and Texas State Highways 114 and 199 intersect at Jacksboro, which is the county seat of Jack County.

The trial of Satanta and Big Tree occurred in May 1871 in the town of Jacksboro in Jack County, Texas, United States. This historic trial of Native American war chiefs of the Kiowa Indians Satanta and Big Tree for the murder of seven teamsters during a raid on Salt Creek Prairie near Jacksboro, Texas, marked the first time the United States had tried Native American chiefs in a state court. The trial attracted national and international attention. The two Kiowa leaders, with Satank, a legendary third War Chief, were formally indicted on July 1, 1871, and tried shortly thereafter, for acts arising out of the Warren Wagon Train Raid.