Joseph "Satch" Satriani (born July 15, 1956 in Westbury, New York) is an American multi-instrumentalist, known as an instrumental rock guitarist, who has been nominated for Grammy Awards. Early in his career, Satriani worked as a guitar instructor, and some of his former students have achieved fame with their guitar skills. Satriani has been a driving force behind other musicians throughout his career, as a founder of the ever-changing touring trio, G3, as well as performing in temporary positions with other musicians.

In 1988, Satriani was recruited by the The Rolling Stones' Mick Jagger as lead guitarist for the singer's second solo tour. Later, in 1994, Satriani was the lead guitarist for Deep Purple. Satriani worked with a range of guitarists from many musical genres, including Steve Vai, John Petrucci, Eric Johnson, Larry LaLonde, Yngwie Malmsteen, Brian May, Patrick Rondat, Andy Timmons, Paul Gilbert, Adrian Legg, and Robert Fripp through the annual G3 Jam Concerts.

He is heavily influenced by blues-rock guitar icons such as Jimi Hendrix, Eric Clapton, Jimmy Page and Jeff Beck, possessing, however, his own easily recognizable style. Since 1988, Satriani has been using his own signature guitar, the Ibanez JS Series, which is widely sold in stores. He has a signature series amplifier, the Peavey JSX, and a signature Vox distortion pedal, the Satchurator. He is currently the lead guitarist for the supergroup Chickenfoot.