Professional ratings
Review scores
Source	Rating
AllMusic
Christgau's Consumer Guide	A−
Entertainment Weekly	A
Los Angeles Times
Pitchfork Media	8.5/10
Q
Rolling Stone
The Rolling Stone Album Guide
Spin
Spin Alternative Record Guide	8/10

Superunknown is the fourth album by American rock band Soundgarden, released on March 8, 1994 through A&M Records. It is the band's second album with bassist Ben Shepherd, and features new producer Michael Beinhorn. Soundgarden began work on the album after touring in support of its previous album, Badmotorfinger (1991). Superunknown continued a departure from the band's earlier releases while displaying a more diverse range of influences.

Superunknown was a critical and commercial success and became the band's breakthrough album. It debuted at number one on the Billboard 200, selling 310,000 copies in its opening week and reached high positions on charts worldwide. Five singles were released from the album: "The Day I Tried to Live", "My Wave", "Fell on Black Days", "Spoonman", and "Black Hole Sun", the latter two of which won Grammy Awards and helped Soundgarden reach mainstream popularity. In 1995, the album was nominated for the Grammy Award for Best Rock Album. The album has been certified five times platinum by the RIAA in the United States and has sold around 9 million copies worldwide and remains Soundgarden's most successful album.

Soundgarden began work on the album about two months after finishing its stint on the 1992 Lollapalooza tour. The individual band members would work on material on their own and then bring in demos to which the other members of the band would contribute. Frontman Chris Cornell said that the band members allowed each other more freedom than on past records. Thayil observed that even though the band spent as much time writing and arranging as it had on previous albums, it spent a lot more time working on recording the songs. After two albums with producer Terry Date, the band decided to seek another collaborator, as guitarist Kim Thayil said, "We just thought we'd go for a change." Eventually they settled on producer Michael Beinhorn, who "didn't have his own trademark sound which he was trying to tack on to Soundgarden" and had ideas the band approved.

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