Jon Fishman (born February 19, 1965) is an American drummer and co-founder of the band Phish, which was, in part, named after him.

[2] Fishman had a passion for the drums from an early age and emulated John Bonham, the drummer for Led Zeppelin, Bill Bruford of Yes and King Crimson, along with Keith Moon of The Who.

[4] In addition to drumming, he also sings back-up vocals and occasionally lead-vocals (usually on cover songs, most of them humorous – the best examples are Prince's "Purple Rain", Syd Barrett’s "Love You", and "Terrapin", Neil Diamond's "Cracklin' Rosie", Will Smith's song "Gettin' Jiggy Wit It", and Syd Barrett-era Pink Floyd's "Bike").

[5] Fishman regularly performs with Phish wearing a blue muumuu dress with a pattern of red annuli.

[7] Fishman uses a variety of drums and cymbals on his kit; brands such as Noble & Cooley, Gretsch, Ludwig, Yamaha, Ayotte, Eames, Zildjian, Sabian, Paiste, and Wuhan.

[8] Perhaps the most recognizable part of his kit however, is the orange circle print muumuu he wears almost every performance and as such has become a de facto symbol of the band.

In 2007, he emerged from semi-retirement to perform a series of shows with the Yonder Mountain String Band, including a large portion of their set at the Rothbury Music Festival which happened the summer of 2008.

[9] Fishman and his five children Ella Cynthia, 21, Jack Bradley, 19, Rose (Rosie) Lorelei, 15, Lily Millay, 13, Fredrick (Freddie) George, 9, live in Lincolnville, Maine.

[10] The family appeared on an episode of the Magnolia Network home restoration series Maine Cabin Masters in March 2018.