Philip Chapman Lesh (born March 15, 1940) is a musician and a founding member of the Grateful Dead, with whom he played bass guitar throughout their 30-year career.

After the band's disbanding in 1995, Lesh continued the tradition of Grateful Dead family music with side project Phil Lesh and Friends, which paid homage to the Dead's music by playing their originals, common covers, and the songs of the members of his band. Phil Lesh & Friends helped keep a legitimate entity for the band's music to continue. Recently, Lesh has opened a music venue called Terrapin Crossroads, and has been performing with Furthur alongside former Grateful Dead bandmate Bob Weir.

Background

Lesh was born in Berkeley, California, and started out as a violin player. While enrolled at Berkeley High School, he switched to trumpet. Studying the instrument under Bob Hansen, conductor of the symphonic Golden Gate Park Band, he developed a keen interest in avant-garde classical music and free jazz. At the College of San Mateo, Lesh played trumpet in and wrote for the school's big band. (A snippet of tape of Lesh on trumpet in college can be heard on "Born Cross-Eyed" from the Grateful Dead's 1968 release Anthem of the Sun.) After transferring with sophomore standing to the University of California, Berkeley in 1961, he befriended future Grateful Dead keyboardist Tom Constanten before dropping out after less than a semester. At the behest of Constanten, he studied under the Italian modernist Luciano Berio in a graduate-level course at Mills College in the spring of 1962; their classmates included Steve Reich and Stanford University cross-registrant John Chowning.