Label: Zoo Entertainment – 72445-11027-1, Volcano Entertainment III, L.L.C. – 61422-31027-1
Format: 12" EP
Country: US
Released: 1992
Genre: Rock

Opiate is an EP by American rock band Tool. It was produced and engineered by Sylvia Massy and former Minor Threat bassist Steve Hansgen. Released in 1992, it was the result of some two years of the band playing together after their formation in 1990. Opiate preceded Tool's first full-length release, Undertow, by a year. It is named after a quote by Karl Marx: "religion ... is the opiate of the masses". The EP was certified Platinum by the RIAA. The EP charted on several international charts when Tool released their catalog to online streaming in August 2019.