Joseph "Satch" Satriani (born July 15, 1956 in Westbury, New York, U.S.) is an American guitarist and former guitar instructor. He is heavily influenced by Jimi Hendrix, Jimmy Page and Jeff Beck. Since 1990, 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.

In 1988, Satriani was recruited by the Rolling Stones' Mick Jagger as lead guitarist for Jagger's first 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 styles, including Steve Vai, John Petrucci, Eric Johnson, Yngwie Malmsteen, Patrick Rondat, Andy Timmons, Paul Gilbert, Marty Friedman, Kirk Hammett and Robert Fripp through the annual G3 Jam Concerts.