Six Flags (1961–2024)
| Formerly | Tierco Group, Inc. (1971-1994) Premier Parks, Inc. (1994-2000) Six Flags, Inc. (2000–2010) | 
|---|---|
| Company type | Public | 
| Industry | Theme parks | 
| Predecessor | Six Flags Theme Parks | 
| Founded | 1961 | 
| Founder | Angus G. Wynne | 
| Defunct | July 1, 2024 | 
| Fate | Merged with Cedar Fair | 
| Successor | Six Flags (2024) | 
| Headquarters | Arlington, Texas, U.S. | 
| Number of locations | 27 | 
| Area served | 
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| Key people | Selim Bassoul (CEO) | 
| Revenue | 
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| Number of employees | 1,450 full-time; 40,000 seasonal (2022) | 
| Website | sixflags | 
Six Flags Entertainment Corporation, formerly Six Flags Theme Parks, Inc., was an American amusement park corporation, headquartered in Arlington, Texas. At its height, Six Flags owned more theme parks and waterparks than any other company: 42 properties in the United States, Canada, and Mexico, including theme parks, amusement parks, water parks, and a family entertainment center. In 2019, Six Flags properties hosted 32.8 million customers, the seventh-highest attendance in the world.
Founded in the 1960s and named for its first theme park, Six Flags Over Texas, the company was known first as Six Flags, Corp., and later Six Flags, Inc. The company maintained a corporate office in Midtown Manhattan, and headquarters in Arlington, Texas. On June 13, 2009, the corporation filed for Chapter 11 bankruptcy protection, which it exited after corporate restructuring on May 3, 2010.
On July 1, 2024, Six Flags merged with rival Cedar Fair in an $8 billion deal; the merged company, also called Six Flags and based in Charlotte, operates 51 properties, including 27 amusement parks, 15 water parks, and nine resorts.