GameStop Corporation (NYSE: GME) is an American video game and entertainment software retailer. The company, whose headquarters are in Grapevine, Texas (a suburb of Dallas), United States, operates 6,200 retail stores throughout the United States, Canada, Australia, Ireland, Denmark, Finland, France, Germany, Italy, New Zealand, Norway, Spain, Austria, Puerto Rico, Switzerland, Portugal, Sweden and in the United Kingdom. GameStop will open around 400 new stores for the 2009 business year.

The company operates retail stores under the name GameStop, EB Games, Micromania and MovieStop. In addition, the company runs two e-commerce websites, GameStop.com and EBgames.com, and also Game Informer magazine, GameStop's proprietary video and computer game publication. In addition to video and computer games, GameStop sells magazines, strategy guides, entertainment DVDs (which as of late 2008 stopped), and other related merchandise. A major source of the company's profit is also buying used games and films from its customers and selling them back at an increase. Approximately 48% of Gamestop's revenue is from its used products sales (based on the quarter that ended Nov. 1 2008). A new store concept called MovieStop, which focuses on selling movies rather than games, is currently building and operating stores in the southeastern United States, including the Dallas area.