Arlington is a principal city in the U.S. state of Texas, located in Tarrant County. It is part of the Mid-Cities region of the Dallas–Fort Worth–Arlington metropolitan area, approximately 12 miles (19 km) east of downtown Fort Worth and 20 miles (32 km) west of downtown Dallas.

Arlington is home to The University of Texas at Arlington, a doctoral-granting research institution, the Arlington Assembly plant used by General Motors, the Nuclear Regulatory Commission Region IV, Texas Health Resources, and American Mensa. Additionally, Arlington hosts the Texas Rangers' Globe Life Park in Arlington, and the Dallas Cowboys at the AT&T Stadium, the International Bowling Campus (which houses the United States Bowling Congress, International Bowling Museum and the International Bowling Hall of Fame), and the theme parks Six Flags Over Texas (the original Six Flags) and Hurricane Harbor.