The Leland Stanford Junior University Marching Band (LSJUMB) is the student marching band of Stanford University. Billing itself as "The World's Largest Rock and Roll Band," it performs at sporting events, student activities, and other functions. Technically, it is not actually a marching band but rather a scatter band.

A Rolling Stone writer once said of the band, "It's hard for anyone raised on rock to imagine that a band could sound this loud without thousands of watts of amplification."