The Fender Stratocaster, colloquially known as the Strat, is a model of electric guitar designed between 1952 and 1954 by Leo Fender, Bill Carson, George Fullerton, and Freddie Tavares. The Fender Musical Instruments Corporation has continuously manufactured the Stratocaster since 1954. It is a double-cutaway guitar, with an extended top "horn" shape for balance. "Stratocaster" and "Strat" are trademark terms belonging to Fender. Guitars that duplicate the Stratocaster by other manufacturers are sometimes called S-Type or ST-type guitars. Many prominent rock musicians have been associated with the Stratocaster for use in studio recording and live performances, most notably Eric Clapton, Buddy Holly, David Gilmour, Mark Knopfler, Jimi Hendrix, Stevie Ray Vaughan, Mark Speer and George Harrison.

An electric guitar is a guitar that requires external amplification in order to be heard at typical performance volumes, unlike a standard acoustic guitar. It uses one or more pickups to convert the vibration of its strings into electrical signals, which ultimately are reproduced as sound by loudspeakers. The sound is sometimes shaped or electronically altered to achieve different timbres or tonal qualities from that of an acoustic guitar via amplifier settings or knobs on the guitar. Often, this is done through the use of effects such as reverb, distortion and "overdrive"; the latter is considered to be a key element of electric blues guitar music and jazz, rock and heavy-metal guitar-playing. Designs also exist combining attributes of the electric and acoustic guitars: the semi-acoustic and acoustic-electric guitars.