Michael Aaron Einziger (born June 21, 1976 in Los Angeles, California) is a Grammy-nominated musician known as the co-writer and guitarist of the alternative rock band Incubus. Einziger is widely known as an innovator and enthusiast of the use of pedalboard guitar effects during live concerts, and was voted #41 in Total Guitar's top 100 guitarists of all time in 2002. In an interview with Gibson Guitars, writer Steven Rosen states "[Einziger] hasn’t played the guitar so much as he has manipulated it, submitted it to his own needs. Einziger fashions a sonic tapestry that draws heavily from the Zappa/Vai/Hendrix school of rock." Mike is also an active composer, writing his first full-scale orchestral concert entitled "End.>vacuum", as well as "Forced Curvature of Reflective Surfaces"; an experimental composition that will be featured at the "West Coast, Left Coast" Festival at Walt Disney Concert Hall. Einziger is currently enrolled as a student at Harvard University.

Einziger co-founded Incubus with classmates Brandon Boyd, Jose Pasillas II, and Alex Katunich in 1991. Incubus has sold over 13 million albums worldwide and has been nominated for 2 Grammys, MTV music video awards, American Music Awards, mtv U Woodie Award, and the Billboard Awards. Incubus has performed sold-out concerts at The Hollywood Bowl, The Great Western Forum, Madison Square Garden, Radio City Music Hall, Wembley Arena in London, and Araneta Coliseum in Manila, Philippines.