Tokyo Game Show , commonly known as TGS, is a video game trade fair and convention held annually in September in the Makuhari Messe, in Chiba, Japan. It is presented by the Computer Entertainment Supplier's Association (CESA) and Nikkei Business Publications, Inc. The main focus of the show is on Japanese games, but some international video game developers use it to showcase upcoming releases/related hardware. The duration of the event is four days. The first two days of Tokyo Game Show are open only to industry attendees (business) and the general public can attend during the final two days.

Makuhari Messe (幕張メッセ) is a Japanese convention center outside Tokyo, located in the Mihama-ku ward of Chiba City, in the northwest corner of Chiba Prefecture. Designed by Fumihiko Maki, it is accessible by Tokyo's commuter rail system. Makuhari is the name of the area, and Messe is a German language word meaning "trade fair".