Moby Grape is an American rock band founded in 1966. Part of San Francisco's psychedelic music scene, the band merged elements of rock and roll, folk music, pop, blues, and country. They were one of the few groups of which all members were lead vocalists and songwriters. The group's first incarnation ended in 1969, in part due to members Bob Mosley and Skip Spence suffering from mental illness. The group has reformed many times afterwards and continues to perform occasionally.

Moby Grape's success was accompanied by decades-long legal disputes with their former manager, Matthew Katz. Legal difficulties originated shortly after the group's formation, when Katz insisted on ownership of the group name. The dispute with Katz became more acute after the group members' rights to their songs were signed away in 1973, in a settlement made without their knowledge.

As described by Jeff Tamarkin, "The Grape's saga is one of squandered potential, absurdly misguided decisions, bad luck, blunders and excruciating heartbreak, all set to the tune of some of the greatest rock and roll ever to emerge from San Francisco. Moby Grape could have had it all, but they ended up with nothing, and less."