Pentagram is an American doom metal band from Alexandria, Virginia formed in 1971. They are noted as one of the pioneers of heavy metal, particularly of the sub-genre doom metal. As such, they are considered one of the “big four of doom metal” alongside Candlemass, Saint Vitus, and Trouble.

While active in the underground music scene of the 1970s, Pentagram produced several demos and rehearsal tapes. However, their first full-length album, Pentagram, was not released until 1985; it featured a new line-up, with the only original member being vocalist Bobby Liebling. The band has since released eight more studio albums. The current line-up of Pentagram consists of Liebling, Tony Reed (guitar), Scooter Haslip (bass), and Henry Vasquez (drums).