Citron is a Czech hard rock/heavy metal band founded in Ostrava in 1976. The band's history is divided into two distinct eras: between 1976 and 1981, when their name was spelled with a long "ó", Citrón, and they played mainly blues rock. During this time, the band leader was bassist Petr Michalík. The second era, from 1982 until the present, signalled a change in musical style towards hard rock and heavy metal, with drummer Radim Pařízek as band leader and the group's name slightly altered to Citron. As of 2021, Citron has released twelve studio albums, two EPs, and three official compilation albums.