Six Flags Fiesta Texas is a theme park located on approximately 200 acres (0.81 km²) of land in San Antonio, Texas. It is owned by Six Flags.

Six Flags Fiesta Texas is the major entertainment component of USAA's La Cantera, a 1,600 acre (6.5 km²) master-planned development in northwest San Antonio. "La Cantera" means "rock quarry" in Spanish and refers to the former use of the property on which the development sits.

The original development team consisted of property owner USAA Real Estate Company, a subsidiary of the USAA insurance company, and Gaylord Entertainment Company, which owned the now closed Opryland USA theme park in Nashville, Tennessee. The original concept for Fiesta Texas was defined as "a destination market, musical show park" similar to that of Opryland. The primary focus on southwestern music and culture rather than rides would be the unique element that would set the park apart from its competition.

When the initial ownership group began investigating a possible major theme park development in San Antonio, Texas, they faced significant competition in the Texas market. There were similar established Six Flags parks in Arlington and Houston as well as the nearby SeaWorld of Texas, which opened in 1988. Based on the competition, the development team believed the opportunity in San Antonio (an established regional leisure destination) was there and that the stable, slow growth direction of the theme park industry in the U.S. was in their favor.

Texas (ⁱ/ˈtɛksəs/) (Alibamu: Teksi ) is the second most populous and the second most extensive of the 50 United States, and the most extensive state of the 48 contiguous United States. The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in East Texas. Located in the South Central United States, Texas shares an international border with the Mexican states of Chihuahua, Coahuila, Nuevo León, and Tamaulipas to the south, and borders the US states of New Mexico to the west, Oklahoma to the north, Arkansas to the northeast, and Louisiana to the east. Texas has an area of 268,820 square miles (696,200 km²), and a growing population of 25.7 million residents.

During the Spanish colonial rule, the area was officially known as the Nuevo Reino de Filipinas: La Provincia de Texas. Antonio Margil de Jesús was known to be the first person to use the name in a letter to the Viceroy of Mexico in July 20, 1716. The name was not popularly used in daily speech but often appeared in legal documents until the end of the 1800s.