Malignus Youth was a hardcore punk band from Sierra Vista, Arizona, that was active from 1987–1994 and again from 1999–2001. They continue to play sporadic reunion shows through 2020.
Known for their unique sound featuring exceptional complexity in musical arrangements, vocal harmonies, melodic structure, classical music influences, and fast tempos, Malignus Youth have released two LPs (including one live album), two 7-inch EPs, a five-part musical setting of the Roman Catholic Mass on CD, and a retrospective CD compilation of unreleased tracks. Their vinyl output was also collected onto one CD.