Joseph "Satch" Satriani (born July 15, 1956 in Westbury, New York, United States) is an American multiple nominated Grammy Award multi-instrumentalist, best known as an instrumental rock guitarist. Early in his career, Satriani worked as a guitar instructor, and some of his former students have achieved fame with their stellar 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 Rolling Stones' Mick Jagger as lead guitarist for Jagger's second solo tour. Later, in 1994, Satriani was also the lead guitarist for Deep Purple. Satriani has also worked with a wide 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 and Robert Fripp through the annual G3 Jam Concerts.

He is heavily influenced by famous music icons such as Jimi Hendrix, Jimmy Page and Jeff Beck. Since 1988, Satriani has used his own signature guitar, the Ibanez JS Series, which is widely sold in stores. He also has a signature series amplifier, the Peavey JSX.