Fannin Battleground State Historic Site, is a 13.6-acre park east of Goliad, in Goliad County. The area has been in custody of the State Board of Control since the state acquired the site in 1914. A Texas legislative enactment in 1965 placed the site in custody of Texas Parks and Wildlife, and the park opened the same year.

On March 20, 1836, at this site, Colonel J. W. Fannin surrendered himself and 284 of his men after the Battle of Coleto. He surrendered to Mexican General Jose Urrea and told his men that they would be treated as prisoners of war. Seven days after the capture, General Santa Anna had Fannin and the men with him, plus other prisoners captured in the area, executed as traitors. Twenty-eight escaped while 342 were massacred near what is now Goliad State Historical Park.