"Lunchbox" is a song by American rock band Marilyn Manson. It was released as the second single from their debut album, Portrait of an American Family (1994). A heavy metal song that features elements of death metal, industrial music and punk rock, "Lunchbox" was written by the band's eponymous vocalist, Daisy Berkowitz, and Gidget Gein, and produced by Manson with Trent Reznor. According to Berkowitz, the track was written as the frontman's plea to be left alone; it was also inspired by a time where Manson defended himself from bullies with a Kiss lunchbox. The track features elements of "Fire" (1968) performed by Arthur Brown, a musician who influenced the band.

Portrait of an American Family is the debut studio album by American rock band Marilyn Manson. It was released on July 19, 1994, by Nothing and Interscope Records. The group was formed in 1989 by vocalist Marilyn Manson and guitarist Daisy Berkowitz, whose names were created by combining the given name of a pop culture icon with the surname of a serial killer: a naming convention which all other band members would conform to for the next seven years. The most prominent lineup of musicians during their formative years included keyboardist Madonna Wayne Gacy, bassist Gidget Gein and drummer Sara Lee Lucas.