Out of the Cellar is the debut studio album by the American heavy metal band Ratt, released in 1984 by Atlantic Records. The album was an immediate success, with wide airplay on radio and heavy rotation on MTV of its singles, especially the hit "Round and Round". The album is certified as triple platinum by the RIAA. The album brought Ratt to the top of the glam metal scene in Los Angeles. Out of the Cellar would prove to be the band's most successful album.

Ratt is an American heavy metal band that had significant commercial success in the 1980s, with their albums having been certified as gold, platinum, and multi-platinum by the RIAA. The group is perhaps best known for hit singles such as "Round and Round" and "Lay It Down", tracks that ranked on Billboard's top 40 at No. 12 and No. 40, respectively, as well as other songs such as "Wanted Man", "You're in Love" and "Dance". Along with groups such as friendly rivals Mötley Crüe, Ratt has been recognized as instrumental in the formation of the early 1980s Los Angeles glam metal scene, also known as "hair metal" or "pop metal".