Electronic Entertainment Expo, commonly known as E3, is an annual trade fair for the computer and video games industry presented by the Entertainment Software Association (ESA). It is used by many video game publishers and accessory manufacturers to show off their upcoming games and game-related merchandise.

Unlike Gamescom and other video game trade fairs that are open to the public, E3 is an exclusive, industry-only event. Persons who apply to attend are required by the event's governing body (Entertainment Software Association) to verify that they have some professional connexion to the video game industry.