The Ibanez JEM is an electric guitar manufactured by Ibanez and first produced in 1987. The guitar's most notable user is its co-designer, Steve Vai. As of 2010, there have been five sub-models of the JEM: the JEM7, JEM77, JEM777, JEM555, JEM333, and JEM70V. Although the Ibanez JEM series is a signature series guitar, Ibanez mass-produces several of the guitar's sub-models.
The design of the Ibanez JEM series was heavily influenced by the superstrat style of guitars of the early 1980s such as the Jackson Soloist, Kramer Beretta and Hamer Chaparral.