Suicidal Tendencies (also known as S.T. or simply Suicidal) are an American crossover thrash band founded in 1980 in Venice, California by vocalist Mike Muir, who is the only remaining original member of the band. The band is often credited (along with D.R.I.) as one of "the fathers of crossover thrash". To date, Suicidal Tendencies have released twelve studio albums (three of them are composed of re-recorded or previously unreleased material), one EP, four split albums, four compilation albums, and two long-form videos.

Suicidal Tendencies rose to fame with their 1983 self-titled debut album; it spawned the single "Institutionalized", which was one of the first hardcore punk videos to receive substantial airplay on MTV. Suicidal Tendencies' next release was on their own label, Suicidal Records, where they contributed one song, "Look Up...(The Boys Are Back)", on the 1985 split Welcome to Venice. After releasing their second studio album Join the Army (1987), Suicidal Tendencies were signed to Epic Records in 1988, and continued their commercial success with its next three albums, How Will I Laugh Tomorrow When I Can't Even Smile Today (1988), Controlled by Hatred/Feel Like Shit...Déjà Vu (1989) and Lights...Camera...Revolution! (1990); the latter of the two were certified Gold by the RIAA. Their 1992 follow-up album The Art of Rebellion was also very successful, and included two of their biggest hits "Nobody Hears" and "I'll Hate You Better".

After releasing two more studio albums (Still Cyco After All These Years and Suicidal for Life), the band broke up and severed ties from Sony and Epic in 1995. However, they reunited a year later and have continued to perform and record since then. After over a decade of work and many lineup changes, Suicidal Tendencies released their eleventh studio album with all-new material, 13, in 2013. Their follow-up album, World Gone Mad, was released on September 30, 2016.