Bleach is the debut album by the American grunge band Nirvana. It was released in June 1989 through the Sub Pop record label. Bleach originally sold only 30,000 copies, but following the enormous success of the band's second album, Nevermind (1991), fans discovered Nirvana's little-known debut album. It has now sold over four million copies worldwide.

The album's working title was Too Many Humans. It was officially named Bleach in February 1989 after the band's frontman Kurt Cobain found an AIDS prevention poster while Nirvana was driving through San Francisco. The poster advised heroin addicts to bleach their needles before use, featuring the slogan "Bleach Your Works".