The Beacon Street Union was a 1960s psychedelic era rock band, named for a street in their native Boston, whose original members John Lincoln Wright (vocals, percussion; died 4 December 2011), Paul Tartachny (guitar, vocals), Wayne Ulaky (bass, vocals), Robert Rhodes (keyboards, bass), and Richard Weisberg (drums) all went to Boston University. With the exception of a few rock standards, their diverse music was composed by group members, primarily Wright and Ulaky.

MGM Records promoted them as part of the so-called "Bosstown Sound," shepherded by record producer Alan Lorber, (along with the groups Ultimate Spinach and Orpheus). The group met with little success, although their first album The Eyes Of The Beacon Street Union charted at #75 on May 4, 1968. The band relocated to New York, where, after a second album, The Clown Died in Marvin Gardens, Wright, Ulaky, Weisberg, and Rhodes recorded a further album as Eagle. Later in the 1970s, Wright went on to write and sing country music as leader of the Sour Mash Boys.